diff --git a/build.gradle b/build.gradle
index 4f3f271..575f70e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,7 +12,7 @@ repositories {
 }
 
 def grpcVersion = '1.79.0'
-def protocVersion = '3.25.8'
+def protocVersion = '4.33.5'
 def junitVersion = '6.0.3'
 def testcontainersVersion = '2.0.3'