diff --git a/package.json b/package.json
index 424b6f2..6eb9888 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "@typescript-eslint/parser": "^4.8.2",
     "autoprefixer": "^10.0.2",
     "eslint": "^7.13.0",
-    "postcss": "^8.1.9",
+    "postcss": "^8.2.10",
     "postcss-dark-theme-class": "^0.5.1",
     "postcss-preset-env": "^6.7.0",
     "prettier": "^2.2.0",
diff --git a/yarn.lock b/yarn.lock
index 260fd01..8edd280 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1401,10 +1401,10 @@ color@^3.1.2, color@^3.1.3:
     color-convert "^1.9.1"
     color-string "^1.5.4"
 
-colorette@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.1.tgz#4d0b921325c14faf92633086a536db6e89564b1b"
-  integrity sha512-puCDz0CzydiSYOrnXpz/PKd69zRrribezjtE9yd4zvytoRc8+RY/KJPvtPFKZS3E3wP6neGyMe0vOTlHO5L3Pw==
+colorette@^1.2.1, 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==
 
 commander@^2.20.0:
   version "2.20.3"
@@ -3633,10 +3633,10 @@ nan@^2.12.1:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.2.tgz#f5376400695168f4cc694ac9393d0c9585eeea19"
   integrity sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==
 
-nanoid@^3.1.16, nanoid@^3.1.18:
-  version "3.1.18"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.18.tgz#0680db22ab01c372e89209f5d18283d98de3e96d"
-  integrity sha512-rndlDjbbHbcV3xi+R2fpJ+PbGMdfBxz5v1fATIQFq0DP64FsicQdwnKLy47K4kZHdRpmQXtz24eGsxQqamzYTA==
+nanoid@^3.1.16, 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"
@@ -4588,15 +4588,14 @@ postcss@^7.0.14, postcss@^7.0.17, postcss@^7.0.2, postcss@^7.0.21, postcss@^7.0.
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.1.6, postcss@^8.1.9:
-  version "8.1.9"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.1.9.tgz#20ff4b598a6f5015c5f7fe524b8ed5313d7ecade"
-  integrity sha512-oWuBpEl1meaMKkQXn0ic78TUrgsMvrAZLE/6ZY0H3LTteq2O3L8PGWwMbPLctpksTJIHjQeossMUMNQW7qRIHQ==
+postcss@^8.1.6, 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 "^1.2.1"
-    nanoid "^3.1.18"
+    colorette "^1.2.2"
+    nanoid "^3.1.22"
     source-map "^0.6.1"
-    vfile-location "^3.2.0"
 
 prebuild-install@^5.3.5:
   version "5.3.6"
@@ -6150,11 +6149,6 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-vfile-location@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/vfile-location/-/vfile-location-3.2.0.tgz#d8e41fbcbd406063669ebf6c33d56ae8721d0f3c"
-  integrity sha512-aLEIZKv/oxuCDZ8lkJGhuhztf/BW4M+iHdCwglA/eWc+vtuRFJj8EtgceYFX4LRjOhCAAiNHsKGssC6onJ+jbA==
-
 vfile-message@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/vfile-message/-/vfile-message-2.0.4.tgz#5b43b88171d409eae58477d13f23dd41d52c371a"