diff --git a/README.md b/README.md
index 8399e3c..b52f594 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 ## Express rate-limitter
-Rate limiting middleware for Express applications.
+Rate limiting middleware for Express applications built on redis
 
 
 ``` js
diff --git a/package.json b/package.json
index f75a7dc..eade9ee 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
   },
   "homepage": "https://github.com/ded/rate-limitter",
   "devDependencies": {
-    "mocha": "~1.18.2"
+    "mocha": "~1.18.2",
+    "redis": "~0.10.1"
   }
 }