diff --git a/samples/snippets/requirements.txt b/samples/snippets/requirements.txt
index 4bafec30..35784043 100644
--- a/samples/snippets/requirements.txt
+++ b/samples/snippets/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.5
-google-auth==1.3.0
+google-auth==1.4.0
 google-auth-httplib2==0.0.3