diff --git a/package.json b/package.json
index b94353e..21a0f2d 100644
--- a/package.json
+++ b/package.json
@@ -1,15 +1,16 @@
 {
   "name": "csscomb-core",
-  "version": "3.0.1",
+  "version": "3.0.3",
   "description": "Framework for writing postprocessors",
   "dependencies": {
     "gonzales-pe": "^3.3.6",
-    "minimatch": "0.2.12",
+    "minimatch": "3.0.2",
     "vow": "0.4.4",
     "vow-fs": "0.3.2"
   },
   "devDependencies": {
     "babel": "^5.5.3",
+    "babel-polyfill": "^6.9.1",
     "jscs": "1.13.x",
     "jshint": "2.8.x",
     "mocha": "1.20.x",
@@ -31,6 +32,7 @@
   "scripts": {
     "build": "./scripts/build.sh",
     "coverage": "./scripts/build.sh && ./scripts/coverage.sh",
+    "prepublish": "./scripts/build.sh",
     "test": "./scripts/build.sh && ./scripts/test.sh"
   }
 }
diff --git a/src/core.js b/src/core.js
index e3b10e8..252f3bc 100644
--- a/src/core.js
+++ b/src/core.js
@@ -1,6 +1,4 @@
-if (!global._babelPolyfill) {
-  require('babel/polyfill');
-}
+require('babel-polyfill');
 let fs = require('fs');
 let gonzales = require('gonzales-pe');
 let minimatch = require('minimatch');