diff --git a/requirements.txt b/requirements.txt
index d56a228..7c01090 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ Flask==0.10.1
 Flask-Script==2.0.5
 Flask-Testing==0.4.2
 funcsigs==0.4
-httplib2==0.9.2
+httplib2==0.22.0
 itsdangerous==0.24
 Jinja2==2.8
 linecache2==1.0.0