diff --git a/package.json b/package.json
index 2c53fa74e7f3..077fb33b9bcb 100644
--- a/package.json
+++ b/package.json
@@ -31,11 +31,11 @@
   "devDependencies": {
     "babel": "^5.5.5",
     "babel-eslint": "^3.1.14",
-    "benchmark": "~1.0.0",
+    "benchmark": "^1.0.0",
     "browserify": "^9.0.3",
     "bundle-collapser": "^1.1.1",
     "coffee-script": "^1.8.0",
-    "coverify": "~1.0.4",
+    "coverify": "^1.3.3",
     "derequire": "^2.0.0",
     "envify": "^3.0.0",
     "es5-shim": "^4.0.0",
@@ -43,24 +43,24 @@
     "eslint-plugin-react": "^2.5.0",
     "eslint-plugin-react-internal": "file:eslint-rules",
     "eslint-tester": "^0.7.0",
-    "grunt": "~0.4.2",
+    "grunt": "^0.4.5",
     "grunt-cli": "^0.1.13",
-    "grunt-compare-size": "~0.4.0",
+    "grunt-compare-size": "^0.4.0",
     "grunt-contrib-clean": "^0.6.0",
     "grunt-contrib-compress": "^0.13.0",
     "grunt-contrib-connect": "~0.6.0",
-    "grunt-jest": "^0.1.2",
+    "grunt-jest": "^0.1.3",
     "gzip-js": "~0.3.2",
     "jasmine-tapreporter": "~0.2.2",
-    "jest-cli": "^0.4.11",
-    "optimist": "~0.6.0",
-    "phantomjs": "~1.9",
+    "jest-cli": "^0.4.13",
+    "optimist": "^0.6.1",
+    "phantomjs": "^1.9.17",
     "platform": "^1.1.0",
     "populist": "~0.1.6",
     "sauce-tunnel": "~1.1.0",
     "tmp": "~0.0.18",
     "typescript": "^1.4.0",
-    "uglify-js": "^2.4.20",
+    "uglify-js": "^2.4.23",
     "uglifyify": "^3.0.1",
     "wd": "~0.2.6"
   },