diff --git a/requirements.txt b/requirements.txt
index 0ec76a4..39033c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ cryptography==1.5
 enum34==1.1.6
 Flask==0.12
 future==0.15.2
-httplib2==0.9.2
+httplib2==0.19.0
 idna==2.1
 ipaddress==1.0.16
 itsdangerous==0.24