diff --git a/requirements.txt b/requirements.txt
index b0801d2..f69f5a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,6 +21,7 @@ python-openid
 python-openid-cla
 python-openid-teams
 python-redis
+python-trollius-redis
 six
 sqlalchemy >= 0.8
 straight.plugin==1.4.0-post-1