diff --git a/gradle.properties b/gradle.properties
index 1834a97d38..4097aeaae5 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -56,7 +56,7 @@ zipkinReporterVersion=2.16.3
 
 # gRPC
 protobufGradlePluginVersion=0.8.19
-protobufVersion=3.21.0
+protobufVersion=3.21.2
 protoGoogleCommonProtosVersion=2.8.3
 javaPoetVersion=1.13.0
 shadowPluginVersion=7.1.1