diff --git a/frontend/package.json b/frontend/package.json
index bf34d42..f3a1a37 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -20,7 +20,7 @@
   "devDependencies": {
     "@vitejs/plugin-react": "^2.0.0",
     "autoprefixer": "^10.4.8",
-    "postcss": "^8.4.6",
+    "postcss": "^8.4.18",
     "tailwindcss": "^3.1.8",
     "vite": "^3.0.3"
   }
diff --git a/frontend/yarn.lock b/frontend/yarn.lock
index d54768e..cb55aed 100644
--- a/frontend/yarn.lock
+++ b/frontend/yarn.lock
@@ -1219,10 +1219,10 @@ postcss-value-parser@^4.0.0, postcss-value-parser@^4.2.0:
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
   integrity sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==
 
-postcss@^8.4.14, postcss@^8.4.6:
-  version "8.4.14"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.14.tgz#ee9274d5622b4858c1007a74d76e42e56fd21caf"
-  integrity sha512-E398TUmfAYFPBSdzgeieK2Y1+1cpdxJx8yXbK/m57nRhKSmk1GB2tO4lbLBtlkfPQTDKfe4Xqv1ASWPpayPEig==
+postcss@^8.4.14, postcss@^8.4.18:
+  version "8.4.18"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.18.tgz#6d50046ea7d3d66a85e0e782074e7203bc7fbca2"
+  integrity sha512-Wi8mWhncLJm11GATDaQKobXSNEYGUHeQLiQqDFG1qQ5UTDPTEvKw0Xt5NsTpktGTwLps3ByrWsBrG0rB8YQ9oA==
   dependencies:
     nanoid "^3.3.4"
     picocolors "^1.0.0"