diff --git a/src/main/java/org/codelibs/fess/helper/IndexingHelper.java b/src/main/java/org/codelibs/fess/helper/IndexingHelper.java
index 24a7f65e4..218c4c906 100644
--- a/src/main/java/org/codelibs/fess/helper/IndexingHelper.java
+++ b/src/main/java/org/codelibs/fess/helper/IndexingHelper.java
@@ -19,7 +19,6 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
-import org.apache.commons.io.FileUtils;
 import org.codelibs.fess.es.client.FessEsClient;
 import org.codelibs.fess.mylasta.direction.FessConfig;
 import org.codelibs.fess.util.ComponentUtil;
diff --git a/src/main/java/org/codelibs/fess/indexer/IndexUpdater.java b/src/main/java/org/codelibs/fess/indexer/IndexUpdater.java
index fe67ebb37..911137bd3 100644
--- a/src/main/java/org/codelibs/fess/indexer/IndexUpdater.java
+++ b/src/main/java/org/codelibs/fess/indexer/IndexUpdater.java
@@ -24,7 +24,6 @@ import java.util.function.Consumer;
 import javax.annotation.PreDestroy;
 import javax.annotation.Resource;
 
-import org.apache.commons.io.FileUtils;
 import org.codelibs.core.lang.StringUtil;
 import org.codelibs.fess.Constants;
 import org.codelibs.fess.crawler.Crawler;