diff --git a/.stylelintignore b/.stylelintignore
index b83e0abb2c..6b2d203d0d 100644
--- a/.stylelintignore
+++ b/.stylelintignore
@@ -1,3 +1,7 @@
+# Stylelint runs on everything by default; we only lint CSS files.
+*
+!*/
+!*.css
 build
 coverage
 examples/
diff --git a/packages/docusaurus-migrate/tsconfig.json b/packages/docusaurus-migrate/tsconfig.json
index e893590d89..f5902ba108 100644
--- a/packages/docusaurus-migrate/tsconfig.json
+++ b/packages/docusaurus-migrate/tsconfig.json
@@ -4,7 +4,6 @@
     "incremental": true,
     "tsBuildInfoFile": "./lib/.tsbuildinfo",
     "rootDir": "src",
-    "outDir": "lib",
-    "typeRoots": ["./external_types", "./node_modules/@types"]
+    "outDir": "lib"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index a37cab7b87..1a1b2776ed 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -190,19 +190,19 @@
     source-map "^0.5.0"
 
 "@babel/core@>=7.9.0", "@babel/core@^7.1.0", "@babel/core@^7.11.1", "@babel/core@^7.11.4", "@babel/core@^7.12.3", "@babel/core@^7.13.16", "@babel/core@^7.15.5", "@babel/core@^7.16.0", "@babel/core@^7.7.5":
-  version "7.16.7"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.16.7.tgz#db990f931f6d40cb9b87a0dc7d2adc749f1dcbcf"
-  integrity sha512-aeLaqcqThRNZYmbMqtulsetOQZ/5gbR/dWruUCJcpas4Qoyy+QeagfDsPdMrqwsPRDNxJvBlRiZxxX7THO7qtA==
+  version "7.16.12"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.16.12.tgz#5edc53c1b71e54881315923ae2aedea2522bb784"
+  integrity sha512-dK5PtG1uiN2ikk++5OzSYsitZKny4wOCD0nrO4TqnW4BVBTQ2NGS3NgilvT/TEyxTST7LNyWV/T4tXDoD3fOgg==
   dependencies:
     "@babel/code-frame" "^7.16.7"
-    "@babel/generator" "^7.16.7"
+    "@babel/generator" "^7.16.8"
     "@babel/helper-compilation-targets" "^7.16.7"
     "@babel/helper-module-transforms" "^7.16.7"
     "@babel/helpers" "^7.16.7"
-    "@babel/parser" "^7.16.7"
+    "@babel/parser" "^7.16.12"
     "@babel/template" "^7.16.7"
-    "@babel/traverse" "^7.16.7"
-    "@babel/types" "^7.16.7"
+    "@babel/traverse" "^7.16.10"
+    "@babel/types" "^7.16.8"
     convert-source-map "^1.7.0"
     debug "^4.1.0"
     gensync "^1.0.0-beta.2"
@@ -219,7 +219,7 @@
     eslint-visitor-keys "^2.1.0"
     semver "^6.3.0"
 
-"@babel/generator@^7.12.5", "@babel/generator@^7.16.0", "@babel/generator@^7.16.7", "@babel/generator@^7.16.8":
+"@babel/generator@^7.12.5", "@babel/generator@^7.16.0", "@babel/generator@^7.16.8":
   version "7.16.8"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.16.8.tgz#359d44d966b8cd059d543250ce79596f792f2ebe"
   integrity sha512-1ojZwE9+lOXzcWdWmO6TbUzDfqLD39CmEhN8+2cX9XkDo5yW1OpgfejfliysR2AWLpMamTiOiAp/mtroaymhpw==
@@ -449,10 +449,10 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
-"@babel/parser@^7.0.0", "@babel/parser@^7.1.0", "@babel/parser@^7.12.7", "@babel/parser@^7.13.16", "@babel/parser@^7.14.7", "@babel/parser@^7.15.7", "@babel/parser@^7.16.4", "@babel/parser@^7.16.7", "@babel/parser@^7.16.8":
-  version "7.16.8"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.16.8.tgz#61c243a3875f7d0b0962b0543a33ece6ff2f1f17"
-  integrity sha512-i7jDUfrVBWc+7OKcBzEe5n7fbv3i2fWtxKzzCvOjnzSxMfWMigAhtfJ7qzZNGFNMsCCd67+uz553dYKWXPvCKw==
+"@babel/parser@^7.0.0", "@babel/parser@^7.1.0", "@babel/parser@^7.12.7", "@babel/parser@^7.13.16", "@babel/parser@^7.14.7", "@babel/parser@^7.15.7", "@babel/parser@^7.16.10", "@babel/parser@^7.16.12", "@babel/parser@^7.16.4", "@babel/parser@^7.16.7":
+  version "7.16.12"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.16.12.tgz#9474794f9a650cf5e2f892444227f98e28cdf8b6"
+  integrity sha512-VfaV15po8RiZssrkPweyvbGVSe4x2y+aciFCgn0n0/SJMR22cwofRV1mtnJQYcSB1wUTaA/X1LnA3es66MCO5A==
 
 "@babel/plugin-bugfix-safari-id-destructuring-collision-in-function-expression@^7.16.7":
   version "7.16.7"
@@ -1222,10 +1222,10 @@
     "@babel/parser" "^7.16.7"
     "@babel/types" "^7.16.7"
 
-"@babel/traverse@^7.1.0", "@babel/traverse@^7.12.9", "@babel/traverse@^7.13.0", "@babel/traverse@^7.16.3", "@babel/traverse@^7.16.7", "@babel/traverse@^7.16.8":
-  version "7.16.8"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.16.8.tgz#bab2f2b09a5fe8a8d9cad22cbfe3ba1d126fef9c"
-  integrity sha512-xe+H7JlvKsDQwXRsBhSnq1/+9c+LlQcCK3Tn/l5sbx02HYns/cn7ibp9+RV1sIUqu7hKg91NWsgHurO9dowITQ==
+"@babel/traverse@^7.1.0", "@babel/traverse@^7.12.9", "@babel/traverse@^7.13.0", "@babel/traverse@^7.16.10", "@babel/traverse@^7.16.3", "@babel/traverse@^7.16.7", "@babel/traverse@^7.16.8":
+  version "7.16.10"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.16.10.tgz#448f940defbe95b5a8029975b051f75993e8239f"
+  integrity sha512-yzuaYXoRJBGMlBhsMJoUW7G1UmSb/eXr/JHYM/MsOJgavJibLwASijW7oXBdw3NQ6T0bW7Ty5P/VarOs9cHmqw==
   dependencies:
     "@babel/code-frame" "^7.16.7"
     "@babel/generator" "^7.16.8"
@@ -1233,7 +1233,7 @@
     "@babel/helper-function-name" "^7.16.7"
     "@babel/helper-hoist-variables" "^7.16.7"
     "@babel/helper-split-export-declaration" "^7.16.7"
-    "@babel/parser" "^7.16.8"
+    "@babel/parser" "^7.16.10"
     "@babel/types" "^7.16.8"
     debug "^4.1.0"
     globals "^11.1.0"
@@ -5956,9 +5956,9 @@ caniuse-api@^3.0.0:
     lodash.uniq "^4.5.0"
 
 caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001109, caniuse-lite@^1.0.30001286, caniuse-lite@^1.0.30001297:
-  version "1.0.30001299"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001299.tgz#d753bf6444ed401eb503cbbe17aa3e1451b5a68c"
-  integrity sha512-iujN4+x7QzqA2NCSrS5VUy+4gLmRd4xv6vbBBsmfVqTx8bLAD8097euLqQgKxSVLvxjSDcvF1T/i9ocgnUFexw==
+  version "1.0.30001303"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001303.tgz#9b168e4f43ccfc372b86f4bc5a551d9b909c95c9"
+  integrity sha512-/Mqc1oESndUNszJP0kx0UaQU9kEv9nNtJ7Kn8AdA0mNnH8eR1cj0kG+NbNuC1Wq/b21eA8prhKRA3bbkjONegQ==
 
 capture-exit@^2.0.0:
   version "2.0.0"