diff --git a/samples/api-client/accesstoken_example/requirements.txt b/samples/api-client/accesstoken_example/requirements.txt
index 82d3a1c1..07c901e4 100644
--- a/samples/api-client/accesstoken_example/requirements.txt
+++ b/samples/api-client/accesstoken_example/requirements.txt
@@ -3,7 +3,7 @@ flaky==3.7.0
 google-api-python-client==2.63.0
 google-auth-httplib2==0.1.0
 google-auth==2.12.0
-google-cloud-iot==2.6.2
+google-cloud-iot==2.6.3
 google-cloud-pubsub==2.13.7
 google-cloud-storage==2.5.0
 paho-mqtt==1.6.1
diff --git a/samples/api-client/manager/requirements.txt b/samples/api-client/manager/requirements.txt
index 6e9759e9..c39b8eef 100644
--- a/samples/api-client/manager/requirements.txt
+++ b/samples/api-client/manager/requirements.txt
@@ -3,7 +3,7 @@ flaky==3.7.0
 google-api-python-client==2.63.0
 google-auth-httplib2==0.1.0
 google-auth==2.12.0
-google-cloud-iot==2.6.2
+google-cloud-iot==2.6.3
 google-cloud-pubsub==2.13.7
 paho-mqtt==1.6.1
 pyjwt==2.5.0