diff --git a/requirements.txt b/requirements.txt
index 885ff71..e94b634 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 google-api-python-client==1.6.2
-httplib2==0.18.0
+httplib2==0.19.0
 oauth2client==4.1.2
 pyasn1==0.3.2
 pyasn1-modules==0.0.11