diff --git a/packages/google-cloud-containeranalysis/samples/snippets/requirements.txt b/packages/google-cloud-containeranalysis/samples/snippets/requirements.txt
index 0f9a29af29d1..41c1ec9fd58c 100644
--- a/packages/google-cloud-containeranalysis/samples/snippets/requirements.txt
+++ b/packages/google-cloud-containeranalysis/samples/snippets/requirements.txt
@@ -1,4 +1,4 @@
-google-cloud-pubsub==2.3.0
+google-cloud-pubsub==2.4.0
 google-cloud-containeranalysis==2.2.1
 grafeas==1.0.1
 pytest==5.3.0; python_version > "3.0"