diff --git a/package.json b/package.json
index 2cbb292..d6fef48 100644
--- a/package.json
+++ b/package.json
@@ -21,10 +21,10 @@
   "devDependencies": {
     "chai": "^3.2.0",
     "mocha": "^2.3.2",
-    "webpack": "1.x.x || 2.x.x || 2.x.x-beta"
+    "webpack": "1 || 2 || ^2.0.0-beta || ^2.1.0-beta"
   },
   "peerDependencies": {
-    "webpack": "1.x.x || 2.x.x || 2.x.x-beta"
+    "webpack": "1 || 2 || ^2.0.0-beta || ^2.1.0-beta"
   },
   "repository": {
     "type": "git",