diff --git a/wayang-api/wayang-api-python/pom.xml b/wayang-api/wayang-api-python/pom.xml
index 614dbfc..55c26a5 100644
--- a/wayang-api/wayang-api-python/pom.xml
+++ b/wayang-api/wayang-api-python/pom.xml
@@ -74,7 +74,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.7.0</version>
+            <version>3.16.3</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>
diff --git a/wayang-api/wayang-api-scala-java/pom.xml b/wayang-api/wayang-api-scala-java/pom.xml
index 8c8871e..b1ede67 100644
--- a/wayang-api/wayang-api-scala-java/pom.xml
+++ b/wayang-api/wayang-api-scala-java/pom.xml
@@ -135,7 +135,7 @@
         <dependency>
           <groupId>com.google.protobuf</groupId>
           <artifactId>protobuf-java</artifactId>
-          <version>3.15.2</version>
+          <version>3.16.3</version>
         </dependency>
          <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>