diff --git a/features/odl-tapi21-grpc-ext/pom.xml b/features/odl-tapi21-grpc-ext/pom.xml
index e91ea81..b074c90 100644
--- a/features/odl-tapi21-grpc-ext/pom.xml
+++ b/features/odl-tapi21-grpc-ext/pom.xml
@@ -99,7 +99,7 @@ and is available at http://www.eclipse.org/legal/epl-v10.html INTERNAL
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.6.1</version>
+            <version>3.16.3</version>
         </dependency>
         <dependency>
             <groupId>com.squareup.okio</groupId>