diff --git a/package.json b/package.json
index b1cdfd5..1e7f5ea 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "jquery": "^3.2.1",
     "json-loader": "^0.5.4",
     "node-sass": "^4.5.2",
-    "postcss-cssnext": "^2.11.0",
+    "postcss-cssnext": "^3.0.0",
     "postcss-import": "^10.0.0",
     "postcss-loader": "^2.0.5",
     "postcss-scss": "^1.0.0",