change underscore dep

libraries/redis-wrapper/package.json

@@ -16,6 +16,6 @@
     "redis-sentinel": "0.1.1",
     "sandboxed-module": "1.0.1",
     "sinon": "1.10.3",
-    "underscore": "^1.7.0"
+    "underscore": "1.7.0"
   }
 }