diff --git a/package.json b/package.json
index 8515757..f6f99ae 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,6 @@
     "cssnano": "^4.1.5",
     "postcss-cli": "^6.0.1",
     "postcss-import": "^12.0.0",
-    "precss": "^3.1.2"
+    "precss": "^4.0.0"
   }
 }