diff --git a/package.json b/package.json
index 41c9023..48bfd66 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "bugs": "https://github.com/static-dev/spike-css-standards/issues",
   "dependencies": {
     "cssnano": "^3.7.4",
-    "postcss-cssnext": "^2.7.0",
+    "postcss-cssnext": "2.10.0",
     "postcss-import": "^10.0.0",
     "rucksack-css": "^0.9.1",
     "sugarss": "^1.0.0"