diff --git a/requirements/extras/gcpubsub.txt b/requirements/extras/gcpubsub.txt
index 8221bb0c..ceb61ede 100644
--- a/requirements/extras/gcpubsub.txt
+++ b/requirements/extras/gcpubsub.txt
@@ -1,4 +1,4 @@
 google-cloud-pubsub>=2.18.4
 google-cloud-monitoring>=2.16.0
 grpcio==1.67.0
-protobuf==4.25.5
+protobuf==5.29.1