diff --git a/other/java/client/pom.xml b/other/java/client/pom.xml
index e8022b8a1..e06d4cac6 100644
--- a/other/java/client/pom.xml
+++ b/other/java/client/pom.xml
@@ -86,7 +86,7 @@
             <extension>
                 <groupId>kr.motd.maven</groupId>
                 <artifactId>os-maven-plugin</artifactId>
-                <version>1.6.3</version>
+                <version>1.6.2</version>
             </extension>
         </extensions>
         <plugins>
diff --git a/other/java/client/pom.xml.deploy b/other/java/client/pom.xml.deploy
index 94650f1d7..40ede4b99 100644
--- a/other/java/client/pom.xml.deploy
+++ b/other/java/client/pom.xml.deploy
@@ -81,7 +81,7 @@
             <extension>
                 <groupId>kr.motd.maven</groupId>
                 <artifactId>os-maven-plugin</artifactId>
-                <version>1.6.3</version>
+                <version>1.6.2</version>
             </extension>
         </extensions>
         <plugins>
diff --git a/other/java/client/pom_debug.xml b/other/java/client/pom_debug.xml
index 7d5ff2aa2..5421a04af 100644
--- a/other/java/client/pom_debug.xml
+++ b/other/java/client/pom_debug.xml
@@ -80,7 +80,7 @@
             <extension>
                 <groupId>kr.motd.maven</groupId>
                 <artifactId>os-maven-plugin</artifactId>
-                <version>1.6.3</version>
+                <version>1.6.2</version>
             </extension>
         </extensions>
         <plugins>
diff --git a/test/random_access/pom.xml b/test/random_access/pom.xml
index 8baaa01c7..44a3fd9df 100644
--- a/test/random_access/pom.xml
+++ b/test/random_access/pom.xml
@@ -40,7 +40,7 @@
             <extension>
                 <groupId>kr.motd.maven</groupId>
                 <artifactId>os-maven-plugin</artifactId>
-                <version>1.6.3</version>
+                <version>1.6.2</version>
             </extension>
         </extensions>
         <plugins>