diff --git a/requirements/common.txt b/requirements/common.txt
index adbca33879..3efb997da1 100644
--- a/requirements/common.txt
+++ b/requirements/common.txt
@@ -82,6 +82,9 @@ mock==2.0.0
 oauth2client==4.0.0
 oauthlib==2.0.1
 
+# Required for Pillow==4.0.0
+olefile==0.44
+
 # Needed for mock>1.1.2
 pbr==1.10