diff --git a/server/package.json b/server/package.json
index 35ebe0f2add..eeee011ca83 100644
--- a/server/package.json
+++ b/server/package.json
@@ -59,7 +59,7 @@
     "redis": "^2.6.2",
     "reflect-metadata": "^0.1.8",
     "request": "^2.75.0",
-    "rxjs": "^5.0.0-beta.12",
+    "rxjs": "5.0.0-beta.12",
     "serve-favicon": "~2.3.0",
     "systemjs": "^0.19.39",
     "zone.js": "^0.6.25"