diff --git a/proxy/package.json b/proxy/package.json
index a828aa6..c907fed 100644
--- a/proxy/package.json
+++ b/proxy/package.json
@@ -25,7 +25,7 @@
     "jasmine": "2.5.2"
   },
   "dependencies": {
-    "coffee-script": "^1.12.2",
+    "coffeescript": "^2.4.1",
     "wrtc": "^0.0.61",
     "ws": "^3.3.1",
     "xmlhttprequest": "^1.8.0"