diff --git a/package.json b/package.json
index 1625e48..d26487f 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
     "mocha": "^6.1.3",
     "node-sass": "^4.11.0",
     "optimize-css-assets-webpack-plugin": "^5.0.1",
-    "postcss": "^7.0.14",
+    "postcss": "^8.2.10",
     "postcss-import": "^12.0.1",
     "postcss-loader": "^3.0.0",
     "postcss-preset-env": "^6.6.0",
diff --git a/yarn.lock b/yarn.lock
index a97bc06..6100702 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2225,6 +2225,11 @@ color@^3.0.0:
     color-convert "^1.9.1"
     color-string "^1.5.2"
 
+colorette@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.2.tgz#cbcc79d5e99caea2dbf10eb3a26fd8b3e6acfa94"
+  integrity sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==
+
 colornames@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/colornames/-/colornames-1.1.1.tgz#f8889030685c7c4ff9e2a559f5077eb76a816f96"
@@ -6777,6 +6782,11 @@ nan@^2.10.0, nan@^2.9.2:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
   integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
 
+nanoid@^3.1.22:
+  version "3.1.23"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.23.tgz#f744086ce7c2bc47ee0a8472574d5c78e4183a81"
+  integrity sha512-FiB0kzdP0FFVGDKlRLEQ1BgDzU87dy5NnzjeW9YZNt+/c3+q82EQDUwniSAUxp/F0gFNI1ZhKU1FqYsMuqZVnw==
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -8375,6 +8385,15 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.14, postcss@^7.0.2, postcss@^7.0.5,
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
+postcss@^8.2.10:
+  version "8.2.10"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.10.tgz#ca7a042aa8aff494b334d0ff3e9e77079f6f702b"
+  integrity sha512-b/h7CPV7QEdrqIxtAf2j31U5ef05uBDuvoXv6L51Q4rcS1jdlXAVKJv+atCFdUXYl9dyTHGyoMzIepwowRJjFw==
+  dependencies:
+    colorette "^1.2.2"
+    nanoid "^3.1.22"
+    source-map "^0.6.1"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"