diff --git a/package.json b/package.json
index 3086f5b..6ed1439 100644
--- a/package.json
+++ b/package.json
@@ -3,8 +3,10 @@
   "private": true,
   "dependencies": {
     "@rails/ujs": "^6.0.0",
+    "compression-webpack-plugin": "^8.0.1",
     "laravel-mix": "^6.0.28",
     "normalize-scss": "^7.0.1",
+    "postcss": "^8.3.6",
     "tufte-css": "^1.8.0",
     "turbolinks": "^5.2.0"
   },
@@ -17,8 +19,6 @@
   "devDependencies": {
     "@babel/compat-data": "^7.9.0",
     "browser-sync": "^2.26.7",
-    "compression-webpack-plugin": "^7.0.0",
-    "postcss": "^8.1.0",
     "resolve-url-loader": "^3.1.1",
     "sass": "^1.26.10",
     "sass-loader": "^10.0.2"
diff --git a/yarn.lock b/yarn.lock
index 0553de7..5eaccb4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2008,13 +2008,13 @@ compressible@~2.0.16:
   dependencies:
     mime-db ">= 1.43.0 < 2"
 
-compression-webpack-plugin@^7.0.0:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/compression-webpack-plugin/-/compression-webpack-plugin-7.1.2.tgz#f9a1ba84d4879693e29726f6884b382940876597"
-  integrity sha512-9DKNW6ILLjx+bNBoviHDgLx6swBhWWH9ApClC9sTH2NoFfQM47BapQfovCm9zjD9v1uZwInF5a925FB9ErGQeQ==
+compression-webpack-plugin@^8.0.1:
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/compression-webpack-plugin/-/compression-webpack-plugin-8.0.1.tgz#13b34403029760e66007f0bac8cf892a2009a3f4"
+  integrity sha512-VWDXcOgEafQDMFXEnoia0VBXJ+RMw81pmqe/EBiOIBnMfY8pG26eqwIS/ytGpzy1rozydltL0zL6KDH9XNWBxQ==
   dependencies:
     schema-utils "^3.0.0"
-    serialize-javascript "^5.0.1"
+    serialize-javascript "^6.0.0"
 
 compression@^1.7.4:
   version "1.7.4"
@@ -4069,11 +4069,6 @@ multicast-dns@^6.0.1:
     dns-packet "^1.3.1"
     thunky "^1.0.2"
 
-nanoid@^3.1.22:
-  version "3.1.22"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.22.tgz#b35f8fb7d151990a8aebd5aa5015c03cf726f844"
-  integrity sha512-/2ZUaJX2ANuLtTvqTlgqBQNJoQO398KyJgZloL0PZkC0dpysjncRUPsFe3DUPzz/y3h+u7C46np8RMuvF3jsSQ==
-
 nanoid@^3.1.23:
   version "3.1.25"
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.25.tgz#09ca32747c0e543f0e1814b7d3793477f9c8e152"
@@ -4757,16 +4752,7 @@ postcss@7.0.21:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
-postcss@^8.1.0:
-  version "8.2.12"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.2.12.tgz#81248a1a87e0f575cc594a99a08207fd1c4addc4"
-  integrity sha512-BJnGT5+0q2tzvs6oQfnY2NpEJ7rIXNfBnZtQOKCIsweeWXBXeDd5k31UgTdS3d/c02ouspufn37mTaHWkJyzMQ==
-  dependencies:
-    colorette "^1.2.2"
-    nanoid "^3.1.22"
-    source-map "^0.6.1"
-
-postcss@^8.2.15:
+postcss@^8.2.15, postcss@^8.3.6:
   version "8.3.6"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.6.tgz#2730dd76a97969f37f53b9a6096197be311cc4ea"
   integrity sha512-wG1cc/JhRgdqB6WHEuyLTedf3KIRuD0hG6ldkFEZNCjRxiC+3i6kkWUUbiJQayP28iwG35cEmAbe98585BYV0A==
@@ -5250,13 +5236,6 @@ send@0.17.1:
     range-parser "~1.2.1"
     statuses "~1.5.0"
 
-serialize-javascript@^5.0.1:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-5.0.1.tgz#7886ec848049a462467a97d3d918ebb2aaf934f4"
-  integrity sha512-SaaNal9imEO737H2c05Og0/8LUXG7EnsZyMa8MzkmuHoELfT6txuj0cMqRj6zfPKnmQ1yasR4PCJc8x+M4JSPA==
-  dependencies:
-    randombytes "^2.1.0"
-
 serialize-javascript@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-6.0.0.tgz#efae5d88f45d7924141da8b5c3a7a7e663fefeb8"