diff --git a/package.json b/package.json
index c4569fea2..d76788d91 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
     "q": "~0.9.7",
     "redis": "~0.9.1",
     "sync": "~0.2.2",
+    "then-redis": "~0.3.9",
     "underscore": "~1.5.2",
     "validator": "~2.0.0",
     "ws": "~0.4.31",