diff --git a/package.json b/package.json
index 301fde0..eacb437 100644
--- a/package.json
+++ b/package.json
@@ -80,7 +80,7 @@
     "gulp-replace": "~1.1.3",
     "gulp-sourcemaps": "~3.0.0",
     "gulp-terser": "~2.1.0",
-    "postcss": "~8.4.7",
+    "postcss": "~8.4.12",
     "postcss-preset-env": "~7.4.2",
     "stylelint": "~14.6.1",
     "stylelint-config-standard-scss": "~3.0.0"
diff --git a/yarn.lock b/yarn.lock
index c5019d0..9513186 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5695,7 +5695,7 @@ postcss@^7.0.16:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.4.12:
+postcss@^8.4.12, postcss@~8.4.12:
   version "8.4.12"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.12.tgz#1e7de78733b28970fa4743f7da6f3763648b1905"
   integrity sha512-lg6eITwYe9v6Hr5CncVbK70SoioNQIq81nsaG86ev5hAidQvmOeETBqs7jm43K2F5/Ley3ytDtriImV6TpNiSg==
@@ -5704,15 +5704,6 @@ postcss@^8.4.12:
     picocolors "^1.0.0"
     source-map-js "^1.0.2"
 
-postcss@~8.4.7:
-  version "8.4.7"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.7.tgz#f99862069ec4541de386bf57f5660a6c7a0875a8"
-  integrity sha512-L9Ye3r6hkkCeOETQX6iOaWZgjp3LL6Lpqm6EtgbKrgqGGteRMNb9vzBfRL96YOSu8o7x3MfIH9Mo5cPJFGrW6A==
-  dependencies:
-    nanoid "^3.3.1"
-    picocolors "^1.0.0"
-    source-map-js "^1.0.2"
-
 prebuild-install@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-7.0.1.tgz#c10075727c318efe72412f333e0ef625beaf3870"