diff --git a/src/client/package.json b/src/client/package.json
index c9d54a7..4bb8d9b 100644
--- a/src/client/package.json
+++ b/src/client/package.json
@@ -27,7 +27,7 @@
     "cssnano": "6.0.1",
     "eslint": "8.50.0",
     "eslint-config-next": "13.5.3",
-    "postcss": "8.4.30",
+    "postcss": "8.4.31",
     "postcss-import": "15.1.0",
     "prettier": "3.0.3",
     "typescript": "5.2.2"
diff --git a/src/client/yarn.lock b/src/client/yarn.lock
index 8317565..3eeb9ea 100644
--- a/src/client/yarn.lock
+++ b/src/client/yarn.lock
@@ -4366,10 +4366,10 @@ postcss@8.4.14:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@8.4.30:
-  version "8.4.30"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.30.tgz#0e0648d551a606ef2192a26da4cabafcc09c1aa7"
-  integrity sha512-7ZEao1g4kd68l97aWG/etQKPKq07us0ieSZ2TnFDk11i0ZfDW2AwKHYU8qv4MZKqN2fdBfg+7q0ES06UA73C1g==
+postcss@8.4.31:
+  version "8.4.31"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.31.tgz#92b451050a9f914da6755af352bdc0192508656d"
+  integrity sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==
   dependencies:
     nanoid "^3.3.6"
     picocolors "^1.0.0"