diff --git a/pom.xml b/pom.xml
index 0c13237..515a107 100644
--- a/pom.xml
+++ b/pom.xml
@@ -290,6 +290,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-shade-plugin</artifactId>
+        <version>2.3</version>
         <configuration>
           <promoteTransitiveDependencies>true</promoteTransitiveDependencies>
           <artifactSet>