diff --git a/package.json b/package.json
index d5cda71..cc28ab8 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "eslint": "^4.11.0",
     "gulp": "^4.0.0",
     "gulp-mocha-phantomjs": "^0.12.2",
-    "gulp-postcss": "^7.0.1",
+    "gulp-postcss": "^8.0.0",
     "gulp-sass": "^4.0.0",
     "gulp-shell": "^0.6.5",
     "mocha": "^5.0.0",