diff --git a/plugin.xml b/plugin.xml
index 7192fb9a1..5b7894760 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -11,68 +11,68 @@
 		<mkdir dir="${target.dir}" />
 		<delete dir="${plugins.dir}" />
 		<mkdir dir="${plugins.dir}" />
-		<!-- analysis-fess -->
-		<antcall target="install.plugin">
-			<param name="repo.url" value="${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="6.3.2" />
-			<param name="plugin.zip.version" value="6.3.2" />
-		</antcall>
 		<!-- 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="6.3.2" />
-			<param name="plugin.zip.version" value="6.3.2" />
+			<param name="plugin.version" value="6.4.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="6.4.0-20180826.225721-1" />
+		</antcall>
+		<!-- analysis-fess -->
+		<antcall target="install.plugin">
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
+			<param name="plugin.groupId" value="org/codelibs" />
+			<param name="plugin.name.prefix" value="elasticsearch-" />
+			<param name="plugin.name" value="analysis-fess" />
+			<param name="plugin.version" value="6.4.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="6.4.0-20180826.225058-1" />
 		</antcall>
 		<!-- configsync -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="configsync" />
-			<param name="plugin.version" value="6.3.1" />
-			<param name="plugin.zip.version" value="6.3.1" />
+			<param name="plugin.version" value="6.4.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="6.4.0-20180827.130413-1" />
 		</antcall>
 		<!-- dataformat -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="dataformat" />
-			<param name="plugin.version" value="6.3.1" />
-			<param name="plugin.zip.version" value="6.3.1" />
+			<param name="plugin.version" value="6.4.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="6.4.0-20180827.132257-2" />
 		</antcall>
 		<!-- langfield -->
 		<antcall target="install.plugin">
-			<param name="repo.url" value="${maven.release.repo.url}" />
+			<param name="repo.url" value="${maven.snapshot.repo.url}" />
 			<param name="plugin.groupId" value="org/codelibs" />
 			<param name="plugin.name.prefix" value="elasticsearch-" />
 			<param name="plugin.name" value="langfield" />
-			<param name="plugin.version" value="6.3.1" />
-			<param name="plugin.zip.version" value="6.3.1" />
-		</antcall>
-		<!-- minhash -->
-		<antcall target="install.plugin">
-			<param name="repo.url" value="${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="6.3.1" />
-			<param name="plugin.zip.version" value="6.3.1" />
+			<param name="plugin.version" value="6.4.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="6.4.0-20180826.230157-1" />
 		</antcall>
 		<!-- learning-to-rank -->
 		<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="learning-to-rank" />
-			<param name="plugin.version" value="6.3.0" />
-			<param name="plugin.zip.version" value="6.3.0" />
+			<param name="plugin.version" value="6.4.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="6.4.0-20180826.230329-1" />
+		</antcall>
+		<!-- minhash -->
+		<antcall target="install.plugin">
+			<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="6.4.0-SNAPSHOT" />
+			<param name="plugin.zip.version" value="6.4.0-20180827.132051-1" />
 		</antcall>
 
 		<antcall target="remove.jars" />