diff --git a/samples/api-client/accesstoken_example/requirements.txt b/samples/api-client/accesstoken_example/requirements.txt
index 650ff0c0..891cfa55 100644
--- a/samples/api-client/accesstoken_example/requirements.txt
+++ b/samples/api-client/accesstoken_example/requirements.txt
@@ -1,6 +1,6 @@
 cryptography==39.0.0
 flaky==3.7.0
-google-api-python-client==2.72.0
+google-api-python-client==2.73.0
 google-auth-httplib2==0.1.0
 google-auth==2.16.0
 google-cloud-iot==2.8.0
diff --git a/samples/api-client/manager/requirements.txt b/samples/api-client/manager/requirements.txt
index d6e46544..d392e09a 100644
--- a/samples/api-client/manager/requirements.txt
+++ b/samples/api-client/manager/requirements.txt
@@ -1,6 +1,6 @@
 cryptography==39.0.0
 flaky==3.7.0
-google-api-python-client==2.72.0
+google-api-python-client==2.73.0
 google-auth-httplib2==0.1.0
 google-auth==2.16.0
 google-cloud-iot==2.8.0