diff --git a/grpc/build.gradle.kts b/grpc/build.gradle.kts
index 0b50b471c4..9a59ab5689 100644
--- a/grpc/build.gradle.kts
+++ b/grpc/build.gradle.kts
@@ -16,7 +16,7 @@ java {
 }
 
 var grpcVersion = "1.78.0"
-var protobufVersion = "4.33.2"
+var protobufVersion = "4.33.3"
 var protocVersion = protobufVersion
 
 dependencies {