diff --git a/src/client/package.json b/src/client/package.json
index 5fdac5a..b67d70f 100644
--- a/src/client/package.json
+++ b/src/client/package.json
@@ -27,7 +27,7 @@
     "cssnano": "6.0.1",
     "eslint": "8.47.0",
     "eslint-config-next": "13.4.16",
-    "postcss": "8.4.27",
+    "postcss": "8.4.28",
     "postcss-import": "15.1.0",
     "prettier": "3.0.2",
     "typescript": "5.1.6"
diff --git a/src/client/yarn.lock b/src/client/yarn.lock
index e2e5011..5cd6d5d 100644
--- a/src/client/yarn.lock
+++ b/src/client/yarn.lock
@@ -4087,10 +4087,10 @@ postcss@8.4.14:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@8.4.27:
-  version "8.4.27"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.27.tgz#234d7e4b72e34ba5a92c29636734349e0d9c3057"
-  integrity sha512-gY/ACJtJPSmUFPDCHtX78+01fHa64FaU4zaaWfuh1MhGJISufJAH4cun6k/8fwsHYeK4UQmENQK+tRLCFJE8JQ==
+postcss@8.4.28:
+  version "8.4.28"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.28.tgz#c6cc681ed00109072816e1557f889ef51cf950a5"
+  integrity sha512-Z7V5j0cq8oEKyejIKfpD8b4eBy9cwW2JWPk0+fB1HOAMsfHbnAXLLS+PfVWlzMSLQaWttKDt607I0XHmpE67Vw==
   dependencies:
     nanoid "^3.3.6"
     picocolors "^1.0.0"