diff --git a/samples/snippets/v3/api-client/requirements.txt b/samples/snippets/v3/api-client/requirements.txt
index 28ef8912..af5ec814 100644
--- a/samples/snippets/v3/api-client/requirements.txt
+++ b/samples/snippets/v3/api-client/requirements.txt
@@ -1 +1,3 @@
-google-api-python-client==1.6.3
+google-api-python-client==1.6.4
+google-auth==1.1.1
+google-auth-httplib2==0.0.2