diff --git a/package.json b/package.json
index 3e5bd10..e2b24c1 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "autoprefixer": "^10.2.5",
-    "postcss": "^8.4.14",
+    "postcss": "^8.4.21",
     "tailwindcss": "^2.0.4"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index ae1514c..5611c32 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -387,9 +387,9 @@ postcss@^6.0.9:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
-postcss@^8.1.6, postcss@^8.2.1, postcss@^8.2.7, postcss@^8.4.14:
-  version "8.4.14"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.14.tgz#ee9274d5622b4858c1007a74d76e42e56fd21caf"
+postcss@^8.1.6, postcss@^8.2.1, postcss@^8.2.7, postcss@^8.4.21:
+  version "8.4.21"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.21.tgz#c639b719a57efc3187b13a1d765675485f4134f4"
   dependencies:
     nanoid "^3.3.4"
     picocolors "^1.0.0"