diff --git a/package.json b/package.json
index 21bad8d..539f9fb 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "devDependencies": {
     "jscs": "^1.6.2",
     "jshint": "^2.5.6",
-    "postcss": "^3.0.0",
+    "postcss": "^4.0.2",
     "tape": "^3.0.0"
   },
   "scripts": {