diff --git a/docs/package.json b/docs/package.json
index dc28e5a0b..53bbee438 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -743,7 +743,7 @@
     "webidl-conversions": "^6.1.0",
     "webpack": "^4.44.1",
     "webpack-chain": "^6.5.1",
-    "webpack-dev-middleware": "^3.7.2",
+    "webpack-dev-middleware": "^5.3.4",
     "webpack-dev-server": "^3.11.0",
     "webpack-log": "^3.0.1",
     "webpack-merge": "^5.1.1",
diff --git a/docs/yarn.lock b/docs/yarn.lock
index 843a24153..53c7f3b18 100644
--- a/docs/yarn.lock
+++ b/docs/yarn.lock
@@ -1050,6 +1050,11 @@
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.5.tgz#dcce4430e64b443ba8945f0290fb564ad5bac6dd"
   integrity sha512-7+2BITlgjgDhH0vvwZU/HZJVyk+2XUlvxXe8dFMedNX/aMkaOq++rMAFXc0tM7ij15QaWlbdQASBR9dihi+bDQ==
 
+"@types/json-schema@^7.0.9":
+  version "7.0.15"
+  resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.15.tgz#596a1747233694d50f6ad8a7869fcb6f56cf5841"
+  integrity sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==
+
 "@types/minimatch@*":
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
@@ -1523,11 +1528,25 @@ ajv-errors@^1.0.0, ajv-errors@^1.0.1:
   resolved "https://registry.yarnpkg.com/ajv-errors/-/ajv-errors-1.0.1.tgz#f35986aceb91afadec4102fbd85014950cefa64d"
   integrity sha512-DCRfO/4nQ+89p/RK43i8Ezd41EqdGIU4ld7nGF8OQ14oc/we5rEntLCUa7+jrn3nn83BosfwZA0wb4pon2o8iQ==
 
+ajv-formats@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ajv-formats/-/ajv-formats-2.1.1.tgz#6e669400659eb74973bbf2e33327180a0996b520"
+  integrity sha512-Wx0Kx52hxE7C18hkMEggYlEifqWZtYaRgouJor+WMdPnQyEK13vgEWyVNup7SoeeoLMsr4kf5h6dOW11I15MUA==
+  dependencies:
+    ajv "^8.0.0"
+
 ajv-keywords@^3.1.0, ajv-keywords@^3.4.1, ajv-keywords@^3.5.2:
   version "3.5.2"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.5.2.tgz#31f29da5ab6e00d1c2d329acf7b5929614d5014d"
   integrity sha512-5p6WTN0DdTGVQk6VjcEju19IgaHudalcfabD7yhDGeA6bcQnmL+CpveLJq/3hvfwd1aof6L386Ougkx6RfyMIQ==
 
+ajv-keywords@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-5.1.0.tgz#69d4d385a4733cdbeab44964a1170a88f87f0e16"
+  integrity sha512-YCS/JNFAUyr5vAuhk1DWm1CBxRHW9LbJ2ozWeemrIqpbsqKjHVxYPyi5GC0rjZIT5JxJ3virVTS8wk4i/Z+krw==
+  dependencies:
+    fast-deep-equal "^3.1.3"
+
 ajv@^6.1.0, ajv@^6.10.2, ajv@^6.12.2, ajv@^6.12.3:
   version "6.12.3"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.12.3.tgz#18c5af38a111ddeb4f2697bd78d68abc1cabd706"
@@ -1538,6 +1557,16 @@ ajv@^6.1.0, ajv@^6.10.2, ajv@^6.12.2, ajv@^6.12.3:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+ajv@^8.0.0, ajv@^8.9.0:
+  version "8.12.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-8.12.0.tgz#d1a0527323e22f53562c567c00991577dfbe19d1"
+  integrity sha512-sRu1kpcO9yLtYxBKvqfTeh9KzZEwO3STyX1HT+4CaDzC6HpTGYhIhPIzj9XuKU7KYDwnaeh5hcOwjy1QuJzBPA==
+  dependencies:
+    fast-deep-equal "^3.1.1"
+    json-schema-traverse "^1.0.0"
+    require-from-string "^2.0.2"
+    uri-js "^4.2.2"
+
 algoliasearch@^3.24.5:
   version "3.35.1"
   resolved "https://registry.yarnpkg.com/algoliasearch/-/algoliasearch-3.35.1.tgz#297d15f534a3507cab2f5dfb996019cac7568f0c"
@@ -2675,6 +2704,11 @@ colorette@^1.2.1, colorette@^1.2.2:
   resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.2.tgz#cbcc79d5e99caea2dbf10eb3a26fd8b3e6acfa94"
   integrity sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==
 
+colorette@^2.0.10:
+  version "2.0.20"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-2.0.20.tgz#9eb793e6833067f7235902fcd3b09917a000a95a"
+  integrity sha512-IfEDxwoWIjkeXL1eXcDiow4UbKjhLdq6/EuSVR9GMN7KVH3r9gQ83e73hsz1Nd1T3ijd5xv1wcWRYO+D6kCI2w==
+
 combined-stream@^1.0.6, combined-stream@^1.0.8, combined-stream@~1.0.6:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
@@ -4354,6 +4388,11 @@ fs-minipass@^2.0.0:
   dependencies:
     minipass "^3.0.0"
 
+fs-monkey@^1.0.4:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/fs-monkey/-/fs-monkey-1.0.5.tgz#fe450175f0db0d7ea758102e1d84096acb925788"
+  integrity sha512-8uMbBjrhzW76TYgEV27Y5E//W2f/lTFmx78P2w19FZSxarhI/798APGQyuGCwmkNxgwGRhrLfvWyLBvNtuOmew==
+
 fs-write-stream-atomic@^1.0.10, fs-write-stream-atomic@^1.0.8:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz#b47df53493ef911df75731e70a9ded0189db40c9"
@@ -5721,6 +5760,11 @@ json-schema-traverse@^0.4.1:
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
   integrity sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==
 
+json-schema-traverse@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz#ae7bcb3656ab77a73ba5c49bf654f38e6b6860e2"
+  integrity sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==
+
 json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
@@ -6225,6 +6269,13 @@ mem@^6.1.0:
     map-age-cleaner "^0.1.3"
     mimic-fn "^3.0.0"
 
+memfs@^3.4.3:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/memfs/-/memfs-3.6.0.tgz#d7a2110f86f79dd950a8b6df6d57bc984aa185f6"
+  integrity sha512-EGowvkkgbMcIChjMTMkESFDbZeSh8xZ7kNSF0hAiAN4Jh6jgHCRS0Ga/+C8y6Au+oqpezRHCfPsmJ2+DwAgiwQ==
+  dependencies:
+    fs-monkey "^1.0.4"
+
 memory-fs@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
@@ -6303,17 +6354,22 @@ miller-rabin@^4.0.0, miller-rabin@^4.0.1:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-mime-db@1.44.0, "mime-db@>= 1.43.0 < 2", mime-db@^1.44.0:
+mime-db@1.52.0:
+  version "1.52.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.52.0.tgz#bbabcdc02859f4987301c856e3387ce5ec43bf70"
+  integrity sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==
+
+"mime-db@>= 1.43.0 < 2", mime-db@^1.44.0:
   version "1.44.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.44.0.tgz#fa11c5eb0aca1334b4233cb4d52f10c5a6272f92"
   integrity sha512-/NOTfLrsPBVeH7YtFPgsVWveuL+4SjjYxaQ1xtM1KMFj7HdxlBlxeyNLzhyJVx7r4rZGJAZ/6lkKCitSc/Nmpg==
 
-mime-types@^2.1.12, mime-types@^2.1.26, mime-types@^2.1.27, mime-types@~2.1.17, mime-types@~2.1.19, mime-types@~2.1.24:
-  version "2.1.27"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.27.tgz#47949f98e279ea53119f5722e0f34e529bec009f"
-  integrity sha512-JIhqnCasI9yD+SsmkquHBxTSEuZdQX5BuQnS2Vc7puQQQ+8yiP5AY5uWhpdv4YL4VM5c6iliiYWPgJ/nJQLp7w==
+mime-types@^2.1.12, mime-types@^2.1.26, mime-types@^2.1.27, mime-types@^2.1.31, mime-types@~2.1.17, mime-types@~2.1.19, mime-types@~2.1.24:
+  version "2.1.35"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.35.tgz#381a871b62a734450660ae3deee44813f70d959a"
+  integrity sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==
   dependencies:
-    mime-db "1.44.0"
+    mime-db "1.52.0"
 
 mime@1.6.0:
   version "1.6.0"
@@ -8134,6 +8190,11 @@ require-directory@^2.1.1:
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
   integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
+require-from-string@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.2.tgz#89a7fdd938261267318eafe14f9c32e598c36909"
+  integrity sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==
+
 require-main-filename@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-2.0.0.tgz#d0b329ecc7cc0f61649f62215be69af54aa8989b"
@@ -8320,6 +8381,16 @@ schema-utils@^2.0.0, schema-utils@^2.6.5, schema-utils@^2.6.6, schema-utils@^2.7
     ajv "^6.12.2"
     ajv-keywords "^3.4.1"
 
+schema-utils@^4.0.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-4.2.0.tgz#70d7c93e153a273a805801882ebd3bff20d89c8b"
+  integrity sha512-L0jRsrPpjdckP3oPug3/VxNKt2trR8TcabrM6FOAAlvC/9Phcmm+cuAgTlxBqdBR1WJx7Naj9WHw+aOmheSVbw==
+  dependencies:
+    "@types/json-schema" "^7.0.9"
+    ajv "^8.9.0"
+    ajv-formats "^2.1.1"
+    ajv-keywords "^5.1.0"
+
 section-matter@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/section-matter/-/section-matter-1.0.0.tgz#e9041953506780ec01d59f292a19c7b850b84167"
@@ -9982,6 +10053,17 @@ webpack-dev-middleware@^3.7.2:
     range-parser "^1.2.1"
     webpack-log "^2.0.0"
 
+webpack-dev-middleware@^5.3.4:
+  version "5.3.4"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-5.3.4.tgz#eb7b39281cbce10e104eb2b8bf2b63fce49a3517"
+  integrity sha512-BVdTqhhs+0IfoeAf7EoH5WE+exCmqGerHfDM0IL096Px60Tq2Mn9MAbnaGUe6HiMa41KMCYF19gyzZmBcq/o4Q==
+  dependencies:
+    colorette "^2.0.10"
+    memfs "^3.4.3"
+    mime-types "^2.1.31"
+    range-parser "^1.2.1"
+    schema-utils "^4.0.0"
+
 webpack-dev-server@^3.11.0, webpack-dev-server@^3.5.1:
   version "3.11.0"
   resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.11.0.tgz#8f154a3bce1bcfd1cc618ef4e703278855e7ff8c"