diff --git a/router-protobuf/build.gradle.kts b/router-protobuf/build.gradle.kts
index f03a57b2..7b6d4228 100644
--- a/router-protobuf/build.gradle.kts
+++ b/router-protobuf/build.gradle.kts
@@ -2,7 +2,7 @@ import com.google.protobuf.gradle.protobuf
 import com.google.protobuf.gradle.protoc
 
 plugins {
-    id("com.google.protobuf") version "0.8.19"
+    id("com.google.protobuf") version "0.9.4"
 }
 
 repositories {