diff --git a/package.json b/package.json
index 74ce976..d2782e8 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
         "rollup-plugin-babel-minify": "^10.0.0",
         "rollup-plugin-commonjs": "^10.0.2",
         "rollup-plugin-node-resolve": "^5.2.0",
-        "rollup-plugin-postcss": "^2.0.3",
+        "rollup-plugin-postcss": "^3.1.8",
         "rollup-plugin-scss": "^2.5.0",
         "rollup-plugin-serve": "^1.0.1"
     }