diff --git a/requirements.txt b/requirements.txt
index 1b7d9da..d9d0078 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,7 +49,7 @@ h5py==2.7.1
 HeapDict==1.0.0
 hetio==0.2.3
 html5lib==1.0.1
-httplib2==0.11.3
+httplib2==0.19.0
 idna==2.6
 imageio==2.2.0
 imagesize==0.7.1