diff --git a/Chapter09/working-with-buttons/package-lock.json b/Chapter09/working-with-buttons/package-lock.json
index bfddb1b..ed67809 100644
--- a/Chapter09/working-with-buttons/package-lock.json
+++ b/Chapter09/working-with-buttons/package-lock.json
@@ -2409,7 +2409,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.27",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "dev": true,
       "funding": [
         {
@@ -2425,7 +2427,6 @@
           "url": "https://github.com/sponsors/ai"
         }
       ],
-      "license": "MIT",
       "dependencies": {
         "nanoid": "^3.3.6",
         "picocolors": "^1.0.0",