diff --git a/gson/pom.xml b/gson/pom.xml
index 14089475..65f063fe 100644
--- a/gson/pom.xml
+++ b/gson/pom.xml
@@ -19,7 +19,7 @@
     <dependency>
       <groupId>com.github.wvengen</groupId>
       <artifactId>proguard-maven-plugin</artifactId>
-      <version>2.3.1</version>
+      <version>2.4.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>