diff --git a/jBPM5Example_SyncWSHumanTaskHandler/ejb/pom.xml b/jBPM5Example_SyncWSHumanTaskHandler/ejb/pom.xml
index b92e1d4..dd655b1 100644
--- a/jBPM5Example_SyncWSHumanTaskHandler/ejb/pom.xml
+++ b/jBPM5Example_SyncWSHumanTaskHandler/ejb/pom.xml
@@ -156,7 +156,7 @@
     <dependency>
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-java</artifactId>
-  <version>2.4.1</version>
+  <version>3.16.1</version>
     </dependency>
 
     <dependency>