diff --git a/package-lock.json b/package-lock.json
index 7338ed0..534f6cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,6 +16,9 @@
                 "stylelint": "^17.7.0",
                 "stylelint-config-standard": "^40.0.0",
                 "stylelint-order": "^8.1.1"
+            },
+            "engines": {
+                "node": "24"
             }
         },
         "node_modules/@asamuzakjp/css-color": {
@@ -2310,9 +2313,9 @@
             }
         },
         "node_modules/postcss": {
-            "version": "8.5.8",
-            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.8.tgz",
-            "integrity": "sha512-OW/rX8O/jXnm82Ey1k44pObPtdblfiuWnrd8X7GJ7emImCOstunGbXUpp7HdBrFQX6rJzn3sPT397Wp5aCwCHg==",
+            "version": "8.5.12",
+            "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.12.tgz",
+            "integrity": "sha512-W62t/Se6rA0Az3DfCL0AqJwXuKwBeYg6nOaIgzP+xZ7N5BFCI7DYi1qs6ygUYT6rvfi6t9k65UMLJC+PHZpDAA==",
             "dev": true,
             "funding": [
                 {