diff --git a/package.json b/package.json
index c467965..dfc2533 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   },
   "devDependencies": {
     "autoprefixer": "^10.4.13",
-    "postcss": "^8.4.13",
+    "postcss": "^8.4.21",
     "tailwindcss": "^3.2.4"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index c14759e..5413eaf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -601,10 +601,10 @@ postcss@8.4.14:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@^8.4.13, postcss@^8.4.18:
-  version "8.4.19"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.19.tgz#61178e2add236b17351897c8bcc0b4c8ecab56fc"
-  integrity sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==
+postcss@^8.4.18, postcss@^8.4.21:
+  version "8.4.21"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.21.tgz#c639b719a57efc3187b13a1d765675485f4134f4"
+  integrity sha512-tP7u/Sn/dVxK2NnruI4H9BG+x+Wxz6oeZ1cJ8P6G/PZY0IKk4k/63TDsQf2kQq3+qoJeLm2kIBUNlZe3zgb4Zg==
   dependencies:
     nanoid "^3.3.4"
     picocolors "^1.0.0"