diff --git a/requirements.txt b/requirements.txt
index f65e7d3..4030d1e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-httplib2==0.9.1
+httplib2==0.18.0
 mock==1.3.0
 pep8==1.6.2
 pytest==2.7.2