diff --git a/dbflute.xml b/dbflute.xml
index f2bb4d359..1196e87b9 100644
--- a/dbflute.xml
+++ b/dbflute.xml
@@ -2,7 +2,7 @@
 <project name="dbflute" basedir=".">
 	<property name="mydbflute.dir" value="${basedir}/mydbflute" />
 	<property name="target.dir" value="${basedir}/target" />
-	<property name="branch.name" value="es-7.8" />
+	<property name="branch.name" value="es-7.9" />
 	<property name="mydbflute.url" value="https://github.com/lastaflute/lastaflute-example-waterfront/archive/${branch.name}.zip" />
 
 	<target name="mydbflute.check">
diff --git a/plugin.xml b/plugin.xml
index dabe51787..aff31ad6d 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -13,48 +13,48 @@
 		<mkdir dir="${plugins.dir}" />
 		<!-- analysis-extension -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="analysis-extension" />
-			<param name="plugin.version" value="7.8.0" />
-			<param name="plugin.zip.version" value="7.8.0" />
+			<param name="plugin.version" value="7.9.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="7.9.0-20200820.013152-1" />
 		</antcall>
 		<!-- analysis-fess -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="analysis-fess" />
-			<param name="plugin.version" value="7.8.0" />
-			<param name="plugin.zip.version" value="7.8.0" />
+			<param name="plugin.version" value="7.9.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="7.9.0-20200820.023826-1" />
 		</antcall>
 		<!-- configsync -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="configsync" />
-			<param name="plugin.version" value="7.8.0" />
-			<param name="plugin.zip.version" value="7.8.0" />
+			<param name="plugin.version" value="7.9.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="7.9.0-20200820.031947-1" />
 		</antcall>
 		<!-- dataformat -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="dataformat" />
-			<param name="plugin.version" value="7.8.0" />
-			<param name="plugin.zip.version" value="7.8.0" />
+			<param name="plugin.version" value="7.9.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="7.9.0-20200820.023932-1" />
 		</antcall>
 		<!-- minhash -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="minhash" />
-			<param name="plugin.version" value="7.8.0" />
-			<param name="plugin.zip.version" value="7.8.0" />
+			<param name="plugin.version" value="7.9.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="7.9.0-20200830.093826-1" />
 		</antcall>
 
 		<antcall target="remove.jars" />
diff --git a/pom.xml b/pom.xml
index 707cfea6d..9e2d3d361 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.codelibs.fess</groupId>
 	<artifactId>fess</artifactId>
-	<version>13.8.3-SNAPSHOT</version>
+	<version>13.9.0-SNAPSHOT</version>
 	<packaging>war</packaging>
 	<name>Fess</name>
 	<description>Fess is Full tExt Search System.</description>
@@ -54,14 +54,14 @@
 		<okhttp.version>3.14.9</okhttp.version>
 
 		<!-- Crawler -->
-		<crawler.version>3.8.3-SNAPSHOT</crawler.version>
+		<crawler.version>3.9.0-SNAPSHOT</crawler.version>
 
 		<!-- Suggest -->
-		<suggest.version>7.8.0</suggest.version>
+		<suggest.version>7.9.0-SNAPSHOT</suggest.version>
 
 		<!-- Elasticsearch -->
-		<elasticsearch.version>7.8.1</elasticsearch.version>
-		<elasticsearch.httpclient.version>7.8.0</elasticsearch.httpclient.version>
+		<elasticsearch.version>7.9.0</elasticsearch.version>
+		<elasticsearch.httpclient.version>7.9.0</elasticsearch.httpclient.version>
 		<cluster.runner.version>${elasticsearch.version}.0</cluster.runner.version>
 
 		<!-- Tomcat -->
diff --git a/src/main/java/org/codelibs/fess/es/config/allcommon/EsAbstractConditionAggregation.java b/src/main/java/org/codelibs/fess/es/config/allcommon/EsAbstractConditionAggregation.java
index 3289be538..52c72176c 100644
--- a/src/main/java/org/codelibs/fess/es/config/allcommon/EsAbstractConditionAggregation.java
+++ b/src/main/java/org/codelibs/fess/es/config/allcommon/EsAbstractConditionAggregation.java
@@ -33,7 +33,7 @@ import org.elasticsearch.search.aggregations.bucket.range.DateRangeAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsAccessTokenCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsAccessTokenCA.java
index 8b9a6f480..fe2a03639 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsAccessTokenCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsAccessTokenCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBadWordCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBadWordCA.java
index 54226d5be..2c997b7fc 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBadWordCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBadWordCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBoostDocumentRuleCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBoostDocumentRuleCA.java
index 72d9a724c..bd6b76347 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBoostDocumentRuleCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsBoostDocumentRuleCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoCA.java
index 9f12f2c86..a07259865 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoParamCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoParamCA.java
index 7f2e78ce5..56edb7fdf 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoParamCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsCrawlingInfoParamCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDataConfigCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDataConfigCA.java
index a5a1d5970..c7cc1fae2 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDataConfigCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDataConfigCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDuplicateHostCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDuplicateHostCA.java
index 54c2baa53..1b721fa9d 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDuplicateHostCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsDuplicateHostCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordCA.java
index c97e967ed..d154a46f2 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordToLabelCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordToLabelCA.java
index 90a7efc64..d3243e022 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordToLabelCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsElevateWordToLabelCA.java
@@ -25,7 +25,7 @@ import org.elasticsearch.search.aggregations.bucket.global.GlobalAggregationBuil
 import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.ScriptedMetricAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFailureUrlCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFailureUrlCA.java
index 58ae79d59..737dfa812 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFailureUrlCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFailureUrlCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileAuthenticationCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileAuthenticationCA.java
index 75d6364d2..40c8022f4 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileAuthenticationCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileAuthenticationCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileConfigCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileConfigCA.java
index e0f39ebb4..42c0eb278 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileConfigCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsFileConfigCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsJobLogCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsJobLogCA.java
index f36587e98..489117e25 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsJobLogCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsJobLogCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsKeyMatchCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsKeyMatchCA.java
index 89515b45e..8abd29e6f 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsKeyMatchCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsKeyMatchCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsLabelTypeCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsLabelTypeCA.java
index a3a709b05..789bbcf84 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsLabelTypeCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsLabelTypeCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsPathMappingCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsPathMappingCA.java
index b418654e4..529c342bc 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsPathMappingCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsPathMappingCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedContentCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedContentCA.java
index a44200e6e..928c7e410 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedContentCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedContentCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedQueryCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedQueryCA.java
index caa460664..a424c1506 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedQueryCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRelatedQueryCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRequestHeaderCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRequestHeaderCA.java
index 1fdd8b99a..b6a376fdf 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRequestHeaderCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRequestHeaderCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRoleTypeCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRoleTypeCA.java
index a59920b86..801fb9776 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRoleTypeCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsRoleTypeCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsScheduledJobCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsScheduledJobCA.java
index 13c8be293..b9b917d61 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsScheduledJobCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsScheduledJobCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsThumbnailQueueCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsThumbnailQueueCA.java
index 80e177692..b321fb508 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsThumbnailQueueCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsThumbnailQueueCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebAuthenticationCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebAuthenticationCA.java
index 7c0889e76..23f1f8b65 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebAuthenticationCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebAuthenticationCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebConfigCA.java b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebConfigCA.java
index 1a7b3414a..ca78b401c 100644
--- a/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebConfigCA.java
+++ b/src/main/java/org/codelibs/fess/es/config/cbean/ca/bs/BsWebConfigCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/log/allcommon/EsAbstractConditionAggregation.java b/src/main/java/org/codelibs/fess/es/log/allcommon/EsAbstractConditionAggregation.java
index ffff97681..5789a8301 100644
--- a/src/main/java/org/codelibs/fess/es/log/allcommon/EsAbstractConditionAggregation.java
+++ b/src/main/java/org/codelibs/fess/es/log/allcommon/EsAbstractConditionAggregation.java
@@ -33,7 +33,7 @@ import org.elasticsearch.search.aggregations.bucket.range.DateRangeAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsClickLogCA.java b/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsClickLogCA.java
index 8e9353c5b..ed1e930da 100644
--- a/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsClickLogCA.java
+++ b/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsClickLogCA.java
@@ -29,7 +29,7 @@ import org.elasticsearch.search.aggregations.bucket.range.DateRangeAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsFavoriteLogCA.java b/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsFavoriteLogCA.java
index ca3f0cd76..d3b981ca5 100644
--- a/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsFavoriteLogCA.java
+++ b/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsFavoriteLogCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.DateRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.ScriptedMetricAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsSearchLogCA.java b/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsSearchLogCA.java
index 3ef7f46be..1196d2130 100644
--- a/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsSearchLogCA.java
+++ b/src/main/java/org/codelibs/fess/es/log/cbean/ca/bs/BsSearchLogCA.java
@@ -29,7 +29,7 @@ import org.elasticsearch.search.aggregations.bucket.range.DateRangeAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/user/allcommon/EsAbstractConditionAggregation.java b/src/main/java/org/codelibs/fess/es/user/allcommon/EsAbstractConditionAggregation.java
index df808815e..a12a000ce 100644
--- a/src/main/java/org/codelibs/fess/es/user/allcommon/EsAbstractConditionAggregation.java
+++ b/src/main/java/org/codelibs/fess/es/user/allcommon/EsAbstractConditionAggregation.java
@@ -33,7 +33,7 @@ import org.elasticsearch.search.aggregations.bucket.range.DateRangeAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsGroupCA.java b/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsGroupCA.java
index 9507bd925..866dbe466 100644
--- a/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsGroupCA.java
+++ b/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsGroupCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsRoleCA.java b/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsRoleCA.java
index 7b399f310..9a63d3a8a 100644
--- a/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsRoleCA.java
+++ b/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsRoleCA.java
@@ -25,7 +25,7 @@ import org.elasticsearch.search.aggregations.bucket.global.GlobalAggregationBuil
 import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.ScriptedMetricAggregationBuilder;
diff --git a/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsUserCA.java b/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsUserCA.java
index be312152c..c0b32b28c 100644
--- a/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsUserCA.java
+++ b/src/main/java/org/codelibs/fess/es/user/cbean/ca/bs/BsUserCA.java
@@ -27,7 +27,7 @@ import org.elasticsearch.search.aggregations.bucket.missing.MissingAggregationBu
 import org.elasticsearch.search.aggregations.bucket.range.IpRangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.range.RangeAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.sampler.SamplerAggregationBuilder;
-import org.elasticsearch.search.aggregations.bucket.significant.SignificantTermsAggregationBuilder;
+import org.elasticsearch.search.aggregations.bucket.terms.SignificantTermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.AvgAggregationBuilder;
 import org.elasticsearch.search.aggregations.metrics.CardinalityAggregationBuilder;