diff --git a/openjpa-project/pom.xml b/openjpa-project/pom.xml
index 11b52ed3e..ad6ce274e 100644
--- a/openjpa-project/pom.xml
+++ b/openjpa-project/pom.xml
@@ -134,6 +134,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-assembly-plugin</artifactId>
+                <version>2.6</version>
                 <executions>
                     <execution>
                         <id>bin</id>