diff --git a/packages/grunt-stryker/package.json b/packages/grunt-stryker/package.json
index 95e3ec5c01..6bde3ddc06 100644
--- a/packages/grunt-stryker/package.json
+++ b/packages/grunt-stryker/package.json
@@ -30,11 +30,11 @@
   },
   "main": "Gruntfile.js",
   "devDependencies": {
-    "grunt": "~0.4.5",
+    "grunt": "^1.0.1",
     "grunt-bump": "^0.8.0",
     "grunt-cli": "^1.2.0",
-    "grunt-contrib-clean": "^0.7.0",
-    "grunt-contrib-jshint": "^0.9.2",
+    "grunt-contrib-clean": "^1.0.0",
+    "grunt-contrib-jshint": "^1.0.0",
     "grunt-conventional-changelog": "^6.1.0",
     "grunt-npm": "0.0.2",
     "jasmine-core": "^2.4.1",
@@ -47,7 +47,7 @@
     "stryker-karma-runner": "^0.2.0"
   },
   "peerDependencies": {
-    "grunt": "~0.4.5",
+    "grunt": ">=0.4.5",
     "stryker": "^0.4.1"
   }
 }