diff --git a/package.json b/package.json
index d82135b..dc6e87f 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "@types/chrome": "^0.0.195",
     "autoprefixer": "^10.4.8",
     "fs-extra": "^10.1.0",
-    "postcss": "^8.4.16",
+    "postcss": "^8.4.19",
     "tailwindcss": "^3.1.8",
     "webpack-extension-reloader": "^1.1.4"
   }
diff --git a/yarn.lock b/yarn.lock
index 8526413..6c3b542 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7172,10 +7172,10 @@ postcss@^7.0.35:
     picocolors "^0.2.1"
     source-map "^0.6.1"
 
-postcss@^8.3.5, postcss@^8.4.14, postcss@^8.4.16, postcss@^8.4.4, postcss@^8.4.7:
-  version "8.4.16"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.16.tgz#33a1d675fac39941f5f445db0de4db2b6e01d43c"
-  integrity sha512-ipHE1XBvKzm5xI7hiHCZJCSugxvsdq2mPnsq5+UF+VHCjiBvtDrlxJfMBToWaP9D5XlgNmcFGqoHmUn0EYEaRQ==
+postcss@^8.3.5, postcss@^8.4.14, postcss@^8.4.19, postcss@^8.4.4, postcss@^8.4.7:
+  version "8.4.19"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.19.tgz#61178e2add236b17351897c8bcc0b4c8ecab56fc"
+  integrity sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==
   dependencies:
     nanoid "^3.3.4"
     picocolors "^1.0.0"