diff --git a/requirements/extras/gcpubsub.txt b/requirements/extras/gcpubsub.txt
index ec7829f86..c4c1b3c60 100644
--- a/requirements/extras/gcpubsub.txt
+++ b/requirements/extras/gcpubsub.txt
@@ -1,3 +1,3 @@
-google-cloud-pubsub>=2.18.4
+google-cloud-pubsub>=2.18.4,<=2.20.3
 google-cloud-monitoring>=2.16.0
 grpcio==1.67.0