diff --git a/pyproject.toml b/pyproject.toml
index 275ed5204b2..5a741aed4d8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,6 +59,7 @@ dependencies = [
     "firebase-admin==5.3.0",
     "flower==2.0.1",
     "google-auth==2.48.0",
+    "google-cloud-pubsub==2.32.0",
     "httpx~=0.28.1",
     "iab-tcf==0.2.2",
     "immutables==0.21",