diff --git a/plugin.xml b/plugin.xml
index 7cd941259..ce7e6ece0 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -4,7 +4,7 @@
 	<property name="target.dir" value="${basedir}/target/plugins" />
 
 	<!-- Maven Repository -->
-	<property name="maven.snapshot.repo.url" value="https://oss.sonatype.org/content/repositories/snapshots" />
+	<property name="maven.snapshot.repo.url" value="https://oss.sonatype.org/content/repositories/releases" />
 	<property name="maven.release.repo.url" value="http://central.maven.org/maven2" />
 
 	<target name="install.plugins">
@@ -13,66 +13,66 @@
 		<mkdir dir="${plugins.dir}" />
 		<!-- analysis-fess -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="repo.url" value="${maven.release.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="analysis-fess" />
-			<param name="plugin.version" value="6.3.0-SNAPSHOT" />
-			<param name="plugin.zip.version" value="6.3.0-20180614.205104-1" />
+			<param name="plugin.version" value="6.3.0" />
+			<param name="plugin.zip.version" value="6.3.0" />
 		</antcall>
 		<!-- analysis-ja -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="repo.url" value="${maven.release.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="analysis-ja" />
-			<param name="plugin.version" value="6.3.0-SNAPSHOT" />
-			<param name="plugin.zip.version" value="6.3.0-20180614.213049-1" />
+			<param name="plugin.version" value="6.3.0" />
+			<param name="plugin.zip.version" value="6.3.0" />
 		</antcall>
 		<!-- analysis-synonym -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="repo.url" value="${maven.release.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="analysis-synonym" />
-			<param name="plugin.version" value="6.3.0-SNAPSHOT" />
-			<param name="plugin.zip.version" value="6.3.0-20180614.214213-1" />
+			<param name="plugin.version" value="6.3.0" />
+			<param name="plugin.zip.version" value="6.3.0" />
 		</antcall>
 		<!-- configsync -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="repo.url" value="${maven.release.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="configsync" />
-			<param name="plugin.version" value="6.3.0-SNAPSHOT" />
-			<param name="plugin.zip.version" value="6.3.0-20180614.214445-1" />
+			<param name="plugin.version" value="6.3.0" />
+			<param name="plugin.zip.version" value="6.3.0" />
 		</antcall>
 		<!-- dataformat -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="repo.url" value="${maven.release.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="dataformat" />
-			<param name="plugin.version" value="6.3.0-SNAPSHOT" />
-			<param name="plugin.zip.version" value="6.3.0-20180615.130428-1" />
+			<param name="plugin.version" value="6.3.0" />
+			<param name="plugin.zip.version" value="6.3.0" />
 		</antcall>
 		<!-- langfield -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="repo.url" value="${maven.release.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="langfield" />
-			<param name="plugin.version" value="6.3.0-SNAPSHOT" />
-			<param name="plugin.zip.version" value="6.3.0-20180615.131150-1" />
+			<param name="plugin.version" value="6.3.0" />
+			<param name="plugin.zip.version" value="6.3.0" />
 		</antcall>
 		<!-- minhash -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="repo.url" value="${maven.release.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="6.3.0-SNAPSHOT" />
-			<param name="plugin.zip.version" value="6.3.0-20180615.132619-1" />
+			<param name="plugin.version" value="6.3.0" />
+			<param name="plugin.zip.version" value="6.3.0" />
 		</antcall>
 
 		<antcall target="remove.jars" />