diff --git a/package.json b/package.json
index aaf40176..ca1fbad4 100644
--- a/package.json
+++ b/package.json
@@ -23,8 +23,8 @@
     "node >= 0.6"
   ],
   "devDependencies": {
-    "should": "~1.2.2",
-    "mocha": "~1.20.1"
+    "mocha": "~1.20.1",
+    "should": "^1.3.0"
   },
   "dependencies": {
     "async": "~0.9.0",