diff --git a/package.json b/package.json
index 317e775d2..d23e9a6a4 100644
--- a/package.json
+++ b/package.json
@@ -40,27 +40,27 @@
     "test": "grunt test"
   },
   "optionalDependencies": {
-    "graceful-fs": "~3.0.4",
-    "mime": "~1.2.11",
-    "request": "~2.47.0",
-    "mkdirp": "~0.5.0",
-    "source-map": "0.1.x",
-    "promise": "~6.0.1"
+    "graceful-fs": "^3.0.4",
+    "mime": "^1.2.11",
+    "request": "^2.48.0",
+    "mkdirp": "^0.5.0",
+    "source-map": "^0.1.x",
+    "promise": "^6.0.1"
   },
   "devDependencies": {
-    "diff": "~1.0",
-    "grunt": "~0.4.5",
-    "grunt-contrib-clean": "~0.6.0",
-    "grunt-contrib-concat": "~0.5.0",
-    "grunt-contrib-connect": "~0.9.0",
-    "grunt-contrib-jasmine": "~0.8.1",
-    "grunt-contrib-jshint": "~0.10.0",
-    "grunt-contrib-uglify": "~0.6.0",
-    "grunt-shell": "~1.1.1",
-    "grunt-browserify": "~3.2.0",
-    "matchdep": "~0.3.0",
-    "time-grunt": "~1.0.0",
-    "grunt-saucelabs": "~8.3.2"
+    "diff": "^1.0",
+    "grunt": "^0.4.5",
+    "grunt-contrib-clean": "^0.6.0",
+    "grunt-contrib-concat": "^0.5.0",
+    "grunt-contrib-connect": "^0.9.0",
+    "grunt-contrib-jasmine": "^0.8.1",
+    "grunt-contrib-jshint": "^0.10.0",
+    "grunt-contrib-uglify": "^0.6.0",
+    "grunt-shell": "^1.1.1",
+    "grunt-browserify": "^3.2.0",
+    "matchdep": "^0.3.0",
+    "time-grunt": "^1.0.0",
+    "grunt-saucelabs": "^8.3.2"
   },
   "keywords": [
     "compile less",