diff --git a/setup.py b/setup.py
index 33f0ddf..4b4461b 100644
--- a/setup.py
+++ b/setup.py
@@ -36,9 +36,9 @@
     'oauth2client>=2.2.0',
     'pyOpenSSL>=0.13',
     'retry_decorator>=1.0.0',
-    'six>=1.12.0'
+    'six>=1.12.0',
     'google-auth==2.17.0',
-    'google-auth-httplib2>=0.2.0',
+    'google-auth-httplib2>=0.2.0'
 ]
 
 extras_require = {