diff --git a/package.json b/package.json
index 39ddd8323..df718b5df 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "mdast-util-to-string": "4.0.0",
     "nanostores": "0.9.3",
     "postcss-nesting": "12.0.0",
-    "postcss-preset-env": "9.0.0",
+    "postcss-preset-env": "9.1.0",
     "prettier": "3.0.0",
     "prettier-plugin-astro": "0.11.0",
     "prettier-plugin-tailwindcss": "0.4.1",