diff --git a/requirements.txt b/requirements.txt
index 28c7760..863c6ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ chardet==3.0.4
 google-api-python-client==1.7.3
 google-auth==1.5.0
 google-auth-httplib2==0.0.3
-httplib2==0.11.3
+httplib2==0.19.0
 idna==2.6
 oauth2client==4.1.2
 psutil==5.4.3