diff --git a/package.json b/package.json
index 92d7199..c03cba9 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "husky": "^7.0.4",
     "lint-staged": "^12.1.2",
     "parcel": "^2.0.1",
-    "postcss": "^8.4.0",
+    "postcss": "^8.4.12",
     "postcss-cli": "^9.0.2",
     "postcss-modules": "^4.2.2",
     "postcss-partial-import": "^4.1.0",
diff --git a/yarn.lock b/yarn.lock
index 3f6bbf8..316dd44 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3374,10 +3374,10 @@ nan@^2.14.2:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.15.0.tgz#3f34a473ff18e15c1b5626b62903b5ad6e665fee"
   integrity sha512-8ZtvEnA2c5aYCZYd1cvgdnU6cqwixRoYg70xPLWUws5ORTa/lnw+u4amixRS/Ac5U5mQVgp9pnlSUnbNWFaWZQ==
 
-nanoid@^3.1.30:
-  version "3.1.31"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.31.tgz#f5b58a1ce1b7604da5f0605757840598d8974dc6"
-  integrity sha512-ZivnJm0o9bb13p2Ot5CpgC2rQdzB9Uxm/mFZweqm5eMViqOJe3PV6LU2E30SiLgheesmcPrjquqraoolONSA0A==
+nanoid@^3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.1.tgz#6347a18cac88af88f58af0b3594b723d5e99bb35"
+  integrity sha512-n6Vs/3KGyxPQd6uO0eH4Bv0ojGSUvuLlIHtC3Y0kEO23YRge8H9x1GCzLn28YX0H66pMkxuaeESFq4tKISKwdw==
 
 ncp@^2.0.0:
   version "2.0.0"
@@ -4124,14 +4124,14 @@ postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.32, postcss@^7.0.5, postcss@^7.0.
     picocolors "^0.2.1"
     source-map "^0.6.1"
 
-postcss@^8.3.0, postcss@^8.3.5, postcss@^8.3.6, postcss@^8.4.0:
-  version "8.4.5"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.5.tgz#bae665764dfd4c6fcc24dc0fdf7e7aa00cc77f95"
-  integrity sha512-jBDboWM8qpaqwkMwItqTQTiFikhs/67OYVvblFFTM7MrZjt6yMKd6r2kgXizEbTTljacm4NldIlZnhbjr84QYg==
+postcss@^8.3.0, postcss@^8.3.5, postcss@^8.3.6, postcss@^8.4.12:
+  version "8.4.12"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.12.tgz#1e7de78733b28970fa4743f7da6f3763648b1905"
+  integrity sha512-lg6eITwYe9v6Hr5CncVbK70SoioNQIq81nsaG86ev5hAidQvmOeETBqs7jm43K2F5/Ley3ytDtriImV6TpNiSg==
   dependencies:
-    nanoid "^3.1.30"
+    nanoid "^3.3.1"
     picocolors "^1.0.0"
-    source-map-js "^1.0.1"
+    source-map-js "^1.0.2"
 
 posthtml-parser@^0.10.0, posthtml-parser@^0.10.1:
   version "0.10.1"
@@ -4622,10 +4622,10 @@ slice-ansi@^5.0.0:
     ansi-styles "^6.0.0"
     is-fullwidth-code-point "^4.0.0"
 
-source-map-js@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.1.tgz#a1741c131e3c77d048252adfa24e23b908670caf"
-  integrity sha512-4+TN2b3tqOCd/kaGRJ/sTYA0tR0mdXx26ipdolxcwtJVqEnqNYvlCAt1q3ypy4QMlYus+Zh34RNtYLoq2oQ4IA==
+source-map-js@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
+  integrity sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==
 
 source-map-support@~0.5.20:
   version "0.5.21"