diff --git a/build.gradle b/build.gradle
index b3d2b6c..b455d77 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ allprojects {
 
 ext {
     grpcVersion = '1.68.2'
-    protobufVersion = '3.25.5'
+    protobufVersion = '4.29.0'
 }
 
 nexusPublishing {