diff --git a/samples/api-client/manager/requirements.txt b/samples/api-client/manager/requirements.txt
index a989ac8c..b06fe118 100644
--- a/samples/api-client/manager/requirements.txt
+++ b/samples/api-client/manager/requirements.txt
@@ -4,6 +4,6 @@ google-api-python-client==1.9.3
 google-auth-httplib2==0.0.3
 google-auth==1.18.0
 google-cloud-iot==1.0.0
-google-cloud-pubsub==1.6.0
+google-cloud-pubsub==1.6.1
 paho-mqtt==1.5.0
 pyjwt==1.7.1