diff --git a/requirements.txt b/requirements.txt
index 4663829..562c71f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ google-api-python-client==1.7.11
 google-auth==1.7.1
 google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.4.1
-httplib2==0.18.0
+httplib2==0.19.0
 idna==2.8
 libmagic==1.0
 oauth2client==4.1.3