diff --git a/desktop/.eslintrc.js b/desktop/.eslintrc.js
index f4d156070..f7a349fe9 100644
--- a/desktop/.eslintrc.js
+++ b/desktop/.eslintrc.js
@@ -9,7 +9,7 @@
 
 const fbjs = require('eslint-config-fbjs');
 
-// enforces copyright header and @format directive to be present in every file
+// enforces copy-right header and @format directive to be present in every file
 const pattern = /^\*\r?\n[\S\s]*Facebook[\S\s]* \* @format\r?\n/;
 
 const builtInModules = [
@@ -25,7 +25,7 @@ const builtInModules = [
   '@emotion/styled',
 ];
 
-const prettierConfig = require('./.prettierrc');
+const prettierConfig = require('./.prettierrc.json');
 
 module.exports = {
   parser: 'babel-eslint',
@@ -76,7 +76,9 @@ module.exports = {
   settings: {
     'import/resolver': {
       typescript: {
+        alwaysTryTypes: true,
         extensions: ['.js', '.jsx', '.ts', '.tsx'],
+        project: '.',
       },
     },
   },
@@ -85,6 +87,8 @@ module.exports = {
       files: ['*.tsx', '*.ts'],
       parser: '@typescript-eslint/parser',
       rules: {
+        'no-undef': 0, // taken care of by TypeScript already
+        'import/no-unresolved': 0, // taken care of by TypeScript already
         'prettier/prettier': [2, {...prettierConfig, parser: 'typescript'}],
         '@typescript-eslint/no-unused-vars': [
           1,
diff --git a/desktop/app/src/.eslintrc.js b/desktop/app/src/.eslintrc.js
deleted file mode 100644
index 80150c279..000000000
--- a/desktop/app/src/.eslintrc.js
+++ /dev/null
@@ -1,22 +0,0 @@
-/**
- * Copyright (c) Facebook, Inc. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @format
- */
-
-// Eslint rules cascade. Rules defined here are merged with the rules
-// defined in the parent directory.
-
-// Somewhat ironically, this particular file is not actually transformed by Babel
-// and can't have ES6 imports/exports.
-// eslint-disable-line import/no-commonjs
-module.exports = {
-  plugins: ['import'],
-  rules: {
-    // Import rules from https://www.npmjs.com/package/eslint-plugin-import
-    'import/no-commonjs': 1,
-  },
-};
diff --git a/desktop/babel-transformer/package.json b/desktop/babel-transformer/package.json
index 228735c99..253e9ed59 100644
--- a/desktop/babel-transformer/package.json
+++ b/desktop/babel-transformer/package.json
@@ -36,7 +36,7 @@
     "rimraf": "^3.0.2",
     "ts-jest": "^26.0.0",
     "ts-node": "^8",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.3"
   },
   "scripts": {
     "reset": "rimraf lib *.tsbuildinfo",
diff --git a/desktop/doctor/package.json b/desktop/doctor/package.json
index d0aa4d53d..a3df6d594 100644
--- a/desktop/doctor/package.json
+++ b/desktop/doctor/package.json
@@ -21,7 +21,7 @@
     "prettier": "^2.0.0",
     "ts-jest": "^26.0.0",
     "tslint-config-prettier": "^1.18.0",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.3"
   },
   "scripts": {
     "reset": "rimraf lib *.tsbuildinfo",
diff --git a/desktop/eslint-plugin-flipper/package.json b/desktop/eslint-plugin-flipper/package.json
index efdaa6662..b3c0f6334 100644
--- a/desktop/eslint-plugin-flipper/package.json
+++ b/desktop/eslint-plugin-flipper/package.json
@@ -10,12 +10,12 @@
   "license": "MIT",
   "bugs": "https://github.com/facebook/flipper/issues",
   "dependencies": {
-    "@typescript-eslint/experimental-utils": "^3.8.0",
+    "@typescript-eslint/experimental-utils": "^4.2.0",
     "fs-extra": "^9.0.1"
   },
   "devDependencies": {
     "@types/jest": "26",
-    "@typescript-eslint/parser": "^3.8.0",
+    "@typescript-eslint/parser": "^4.2.0",
     "flipper-test-utils": "0.58.0",
     "jest": "^26",
     "metro-memory-fs": "^0.61.0",
@@ -23,7 +23,7 @@
     "rimraf": "^3.0.2",
     "ts-jest": "^26.0.0",
     "ts-node": "^8",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.3"
   },
   "scripts": {
     "reset": "rimraf lib *.tsbuildinfo",
diff --git a/desktop/flipper-plugin/package.json b/desktop/flipper-plugin/package.json
index f1736baa2..48f4e3a7c 100644
--- a/desktop/flipper-plugin/package.json
+++ b/desktop/flipper-plugin/package.json
@@ -15,7 +15,7 @@
   },
   "devDependencies": {
     "@types/jest": "^26.0.3",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.3"
   },
   "scripts": {
     "reset": "rimraf lib *.tsbuildinfo",
diff --git a/desktop/package.json b/desktop/package.json
index 4a3f36f8d..449215ee6 100644
--- a/desktop/package.json
+++ b/desktop/package.json
@@ -163,8 +163,8 @@
     "@types/ws": "^7.2.0",
     "@types/yargs": "^15.0.4",
     "@types/yazl": "^2.4.2",
-    "@typescript-eslint/eslint-plugin": "^2.27.0",
-    "@typescript-eslint/parser": "^2.19.2",
+    "@typescript-eslint/eslint-plugin": "^4.2.0",
+    "@typescript-eslint/parser": "^4.2.0",
     "ansi-to-html": "^0.6.3",
     "babel-eslint": "^10.1.0",
     "chalk": "^4.0.0",
@@ -175,7 +175,7 @@
     "eslint": "^7.4.0",
     "eslint-config-fbjs": "^3.1.1",
     "eslint-config-prettier": "^6.10.1",
-    "eslint-import-resolver-typescript": "^2.0.0",
+    "eslint-import-resolver-typescript": "^2.3.0",
     "eslint-plugin-babel": "^5.3.1",
     "eslint-plugin-flipper": "0.58.0",
     "eslint-plugin-flowtype": "^4.7.0",
@@ -221,7 +221,7 @@
     "tmp": "^0.2.1",
     "ts-jest": "^26.0.0",
     "ts-node": "^8.8.1",
-    "typescript": "^3.9.5",
+    "typescript": "^4.0.3",
     "uuid": "^8.3.0",
     "yargs": "^15.4.1",
     "yazl": "^2.5.1"
diff --git a/desktop/pkg-lib/package.json b/desktop/pkg-lib/package.json
index 36b1fd89b..638647e38 100644
--- a/desktop/pkg-lib/package.json
+++ b/desktop/pkg-lib/package.json
@@ -26,7 +26,7 @@
     "rimraf": "^3.0.2",
     "ts-jest": "^26.0.0",
     "ts-node": "^8",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.3"
   },
   "scripts": {
     "reset": "rimraf lib *.tsbuildinfo",
diff --git a/desktop/pkg/package.json b/desktop/pkg/package.json
index ce00c3527..6a746d8ef 100644
--- a/desktop/pkg/package.json
+++ b/desktop/pkg/package.json
@@ -41,7 +41,7 @@
     "rimraf": "^3.0.2",
     "ts-jest": "^26.0.0",
     "ts-node": "^8",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.3"
   },
   "scripts": {
     "reset": "rimraf lib *.tsbuildinfo",
diff --git a/desktop/pkg/src/__tests__/runLint.node.ts b/desktop/pkg/src/__tests__/runLint.node.ts
index e5ad93d7d..243ef3105 100644
--- a/desktop/pkg/src/__tests__/runLint.node.ts
+++ b/desktop/pkg/src/__tests__/runLint.node.ts
@@ -59,6 +59,7 @@ test('valid scoped package json', async () => {
 
 test('$schema field is required', async () => {
   const testPackageJson = Object.assign({}, validPackageJson);
+  // @ts-ignore cannot delete non-optional fields
   delete testPackageJson.$schema;
   const json = JSON.stringify(testPackageJson);
   fs.readFile = jest.fn().mockResolvedValue(new Buffer(json));
@@ -92,6 +93,7 @@ test('supported schema is required', async () => {
 
 test('name is required', async () => {
   const testPackageJson = Object.assign({}, validPackageJson);
+  // @ts-ignore cannot delete non-optional fields
   delete testPackageJson.name;
   const json = JSON.stringify(testPackageJson);
   fs.readFile = jest.fn().mockResolvedValue(new Buffer(json));
@@ -150,6 +152,7 @@ test('flippeBundlerEntry must point to an existing file', async () => {
 test('multiple validation errors reported', async () => {
   const testPackageJson = Object.assign({}, validPackageJson);
   testPackageJson.keywords = ['flipper'];
+  // @ts-ignore cannot delete non-optional fields
   delete testPackageJson.flipperBundlerEntry;
   const json = JSON.stringify(testPackageJson);
   fs.readFile = jest.fn().mockResolvedValue(new Buffer(json));
diff --git a/desktop/plugin-lib/package.json b/desktop/plugin-lib/package.json
index da327a5c5..7244f7548 100644
--- a/desktop/plugin-lib/package.json
+++ b/desktop/plugin-lib/package.json
@@ -35,7 +35,7 @@
     "rimraf": "^3.0.2",
     "ts-jest": "^26.0.0",
     "ts-node": "^8",
-    "typescript": "^3.9.5"
+    "typescript": "^4.0.3"
   },
   "scripts": {
     "reset": "rimraf lib *.tsbuildinfo",
diff --git a/desktop/scripts/jest-setup.js b/desktop/scripts/jest-setup.js
index d37909386..5cca3996c 100644
--- a/desktop/scripts/jest-setup.js
+++ b/desktop/scripts/jest-setup.js
@@ -7,6 +7,8 @@
  * @format
  */
 
+// import/no-unresolved complains, although it is a perfectly fine import
+// eslint-disable-next-line
 global.fetch = require('jest-fetch-mock');
 
 require('immer').enableMapSet();
diff --git a/desktop/yarn.lock b/desktop/yarn.lock
index a2450ba58..e90f3a0f2 100644
--- a/desktop/yarn.lock
+++ b/desktop/yarn.lock
@@ -2009,11 +2009,6 @@
   resolved "https://registry.yarnpkg.com/@types/electron-devtools-installer/-/electron-devtools-installer-2.2.0.tgz#32ee4ebbe99b3daf9847a6d2097dc00b5de94f10"
   integrity sha512-HJNxpaOXuykCK4rQ6FOMxAA0NLFYsf7FiPFGmab0iQmtVBHSAfxzy3MRFpLTTDDWbV0yD2YsHOQvdu8yCqtCfw==
 
-"@types/eslint-visitor-keys@^1.0.0":
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/@types/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#1ee30d79544ca84d68d4b3cdb0af4f205663dd2d"
-  integrity sha512-OCutwjDZ4aFS6PB1UZ988C4YgwlBHJd6wCeQqaLdmadZ/7e+w79+hbMUFC1QXDNCmdyoRfAFdm0RypzwR+Qpag==
-
 "@types/events@*":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@types/events/-/events-3.0.0.tgz#2862f3f58a9a7f7c3e78d79f130dd4d71c25c2a7"
@@ -2552,7 +2547,7 @@
   dependencies:
     "@types/node" "*"
 
-"@typescript-eslint/eslint-plugin@^2.27.0", "@typescript-eslint/eslint-plugin@^2.8.0":
+"@typescript-eslint/eslint-plugin@^2.8.0":
   version "2.28.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-2.28.0.tgz#4431bc6d3af41903e5255770703d4e55a0ccbdec"
   integrity sha512-w0Ugcq2iatloEabQP56BRWJowliXUP5Wv6f9fKzjJmDW81hOTBxRoJ4LoEOxRpz9gcY51Libytd2ba3yLmSOfg==
@@ -2562,14 +2557,18 @@
     regexpp "^3.0.0"
     tsutils "^3.17.1"
 
-"@typescript-eslint/experimental-utils@2.19.2":
-  version "2.19.2"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-2.19.2.tgz#4611d44cf0f0cb460c26aa7676fc0a787281e233"
-  integrity sha512-B88QuwT1wMJR750YvTJBNjMZwmiPpbmKYLm1yI7PCc3x0NariqPwqaPsoJRwU9DmUi0cd9dkhz1IqEnwfD+P1A==
+"@typescript-eslint/eslint-plugin@^4.2.0":
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.2.0.tgz#a3d5c11b377b7e18f3cd9c4e87d465fe9432669b"
+  integrity sha512-zBNRkzvLSwo6y5TG0DVcmshZIYBHKtmzD4N+LYnfTFpzc4bc79o8jNRSb728WV7A4Cegbs+MV5IRAj8BKBgOVQ==
   dependencies:
-    "@types/json-schema" "^7.0.3"
-    "@typescript-eslint/typescript-estree" "2.19.2"
-    eslint-scope "^5.0.0"
+    "@typescript-eslint/experimental-utils" "4.2.0"
+    "@typescript-eslint/scope-manager" "4.2.0"
+    debug "^4.1.1"
+    functional-red-black-tree "^1.0.1"
+    regexpp "^3.0.0"
+    semver "^7.3.2"
+    tsutils "^3.17.1"
 
 "@typescript-eslint/experimental-utils@2.28.0":
   version "2.28.0"
@@ -2581,55 +2580,40 @@
     eslint-scope "^5.0.0"
     eslint-utils "^2.0.0"
 
-"@typescript-eslint/experimental-utils@3.8.0", "@typescript-eslint/experimental-utils@^3.8.0":
-  version "3.8.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-3.8.0.tgz#ac1f7c88322dcfb7635ece6f0441516dd951099a"
-  integrity sha512-o8T1blo1lAJE0QDsW7nSyvZHbiDzQDjINJKyB44Z3sSL39qBy5L10ScI/XwDtaiunoyKGLiY9bzRk4YjsUZl8w==
+"@typescript-eslint/experimental-utils@4.2.0", "@typescript-eslint/experimental-utils@^4.2.0":
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-4.2.0.tgz#3d0b5cd4aa61f5eb7aa1e873dea0db1410b062d2"
+  integrity sha512-5BBj6BjgHEndBaQQpUVzRIPERz03LBc0MCQkHwUaH044FJFL08SwWv/sQftk7gf0ShZ2xZysz0LTwCwNt4Xu3w==
   dependencies:
     "@types/json-schema" "^7.0.3"
-    "@typescript-eslint/types" "3.8.0"
-    "@typescript-eslint/typescript-estree" "3.8.0"
+    "@typescript-eslint/scope-manager" "4.2.0"
+    "@typescript-eslint/types" "4.2.0"
+    "@typescript-eslint/typescript-estree" "4.2.0"
     eslint-scope "^5.0.0"
     eslint-utils "^2.0.0"
 
-"@typescript-eslint/parser@^2.19.2":
-  version "2.19.2"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-2.19.2.tgz#21f42c0694846367e7d6a907feb08ab2f89c0879"
-  integrity sha512-8uwnYGKqX9wWHGPGdLB9sk9+12sjcdqEEYKGgbS8A0IvYX59h01o8os5qXUHMq2na8vpDRaV0suTLM7S8wraTA==
-  dependencies:
-    "@types/eslint-visitor-keys" "^1.0.0"
-    "@typescript-eslint/experimental-utils" "2.19.2"
-    "@typescript-eslint/typescript-estree" "2.19.2"
-    eslint-visitor-keys "^1.1.0"
-
-"@typescript-eslint/parser@^3.8.0":
-  version "3.8.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-3.8.0.tgz#8e1dcd404299bf79492409c81c415fa95a7c622b"
-  integrity sha512-u5vjOBaCsnMVQOvkKCXAmmOhyyMmFFf5dbkM3TIbg3MZ2pyv5peE4gj81UAbTHwTOXEwf7eCQTUMKrDl/+qGnA==
-  dependencies:
-    "@types/eslint-visitor-keys" "^1.0.0"
-    "@typescript-eslint/experimental-utils" "3.8.0"
-    "@typescript-eslint/types" "3.8.0"
-    "@typescript-eslint/typescript-estree" "3.8.0"
-    eslint-visitor-keys "^1.1.0"
-
-"@typescript-eslint/types@3.8.0":
-  version "3.8.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-3.8.0.tgz#58581dd863f86e0cd23353d94362bb90b4bea796"
-  integrity sha512-8kROmEQkv6ss9kdQ44vCN1dTrgu4Qxrd2kXr10kz2NP5T8/7JnEfYNxCpPkArbLIhhkGLZV3aVMplH1RXQRF7Q==
-
-"@typescript-eslint/typescript-estree@2.19.2":
-  version "2.19.2"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-2.19.2.tgz#67485b00172f400474d243c6c0be27581a579350"
-  integrity sha512-Xu/qa0MDk6upQWqE4Qy2X16Xg8Vi32tQS2PR0AvnT/ZYS4YGDvtn2MStOh5y8Zy2mg4NuL06KUHlvCh95j9C6Q==
+"@typescript-eslint/parser@^4.2.0":
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-4.2.0.tgz#1879ef400abd73d972e20f14c3522e5b343d1d1b"
+  integrity sha512-54jJ6MwkOtowpE48C0QJF9iTz2/NZxfKVJzv1ha5imigzHbNSLN9yvbxFFH1KdlRPQrlR8qxqyOvLHHxd397VA==
   dependencies:
+    "@typescript-eslint/scope-manager" "4.2.0"
+    "@typescript-eslint/types" "4.2.0"
+    "@typescript-eslint/typescript-estree" "4.2.0"
     debug "^4.1.1"
-    eslint-visitor-keys "^1.1.0"
-    glob "^7.1.6"
-    is-glob "^4.0.1"
-    lodash "^4.17.15"
-    semver "^6.3.0"
-    tsutils "^3.17.1"
+
+"@typescript-eslint/scope-manager@4.2.0":
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-4.2.0.tgz#d10e6854a65e175b22a28265d372a97c8cce4bfc"
+  integrity sha512-Tb402cxxObSxWIVT+PnBp5ruT2V/36yj6gG4C9AjkgRlZpxrLAzWDk3neen6ToMBGeGdxtnfFLoJRUecGz9mYQ==
+  dependencies:
+    "@typescript-eslint/types" "4.2.0"
+    "@typescript-eslint/visitor-keys" "4.2.0"
+
+"@typescript-eslint/types@4.2.0":
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-4.2.0.tgz#6f6b094329e72040f173123832397c7c0b910fc8"
+  integrity sha512-xkv5nIsxfI/Di9eVwN+G9reWl7Me9R5jpzmZUch58uQ7g0/hHVuGUbbn4NcxcM5y/R4wuJIIEPKPDb5l4Fdmwg==
 
 "@typescript-eslint/typescript-estree@2.28.0":
   version "2.28.0"
@@ -2644,26 +2628,27 @@
     semver "^6.3.0"
     tsutils "^3.17.1"
 
-"@typescript-eslint/typescript-estree@3.8.0":
-  version "3.8.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-3.8.0.tgz#0606d19f629f813dbdd5a34c7a1e895d6191cac6"
-  integrity sha512-MTv9nPDhlKfclwnplRNDL44mP2SY96YmPGxmMbMy6x12I+pERcxpIUht7DXZaj4mOKKtet53wYYXU0ABaiXrLw==
+"@typescript-eslint/typescript-estree@4.2.0":
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-4.2.0.tgz#9d746240991c305bf225ad5e96cbf57e7fea0551"
+  integrity sha512-iWDLCB7z4MGkLipduF6EOotdHNtgxuNKnYD54nMS/oitFnsk4S3S/TE/UYXQTra550lHtlv9eGmp+dvN9pUDtA==
   dependencies:
-    "@typescript-eslint/types" "3.8.0"
-    "@typescript-eslint/visitor-keys" "3.8.0"
+    "@typescript-eslint/types" "4.2.0"
+    "@typescript-eslint/visitor-keys" "4.2.0"
     debug "^4.1.1"
-    glob "^7.1.6"
+    globby "^11.0.1"
     is-glob "^4.0.1"
     lodash "^4.17.15"
     semver "^7.3.2"
     tsutils "^3.17.1"
 
-"@typescript-eslint/visitor-keys@3.8.0":
-  version "3.8.0"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-3.8.0.tgz#ad35110249fb3fc30a36bfcbfeea93e710cfaab1"
-  integrity sha512-gfqQWyVPpT9NpLREXNR820AYwgz+Kr1GuF3nf1wxpHD6hdxI62tq03ToomFnDxY0m3pUB39IF7sil7D5TQexLA==
+"@typescript-eslint/visitor-keys@4.2.0":
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-4.2.0.tgz#ae13838e3a260b63ae51021ecaf1d0cdea8dbba5"
+  integrity sha512-WIf4BNOlFOH2W+YqGWa6YKLcK/EB3gEj2apCrqLw6mme1RzBy0jtJ9ewJgnrZDB640zfnv8L+/gwGH5sYp/rGw==
   dependencies:
-    eslint-visitor-keys "^1.1.0"
+    "@typescript-eslint/types" "4.2.0"
+    eslint-visitor-keys "^2.0.0"
 
 "@yarnpkg/lockfile@^1.1.0":
   version "1.1.0"
@@ -5311,15 +5296,15 @@ eslint-import-resolver-node@^0.3.3:
     debug "^2.6.9"
     resolve "^1.13.1"
 
-eslint-import-resolver-typescript@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/eslint-import-resolver-typescript/-/eslint-import-resolver-typescript-2.0.0.tgz#e95f126cc12d3018b9cc11692b4dbfd3e17d3ea6"
-  integrity sha512-bT5Frpl8UWoHBtY25vKUOMoVIMlJQOMefHLyQ4Tz3MQpIZ2N6yYKEEIHMo38bszBNUuMBW6M3+5JNYxeiGFH4w==
+eslint-import-resolver-typescript@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/eslint-import-resolver-typescript/-/eslint-import-resolver-typescript-2.3.0.tgz#0870988098bc6c6419c87705e6b42bee89425445"
+  integrity sha512-MHSXvmj5e0SGOOBhBbt7C+fWj1bJbtSYFAD85Xeg8nvUtuooTod2HQb8bfhE9f5QyyNxEfgzqOYFCvmdDIcCuw==
   dependencies:
     debug "^4.1.1"
+    glob "^7.1.6"
     is-glob "^4.0.1"
-    resolve "^1.12.0"
-    tiny-glob "^0.2.6"
+    resolve "^1.17.0"
     tsconfig-paths "^3.9.0"
 
 eslint-module-utils@^2.6.0:
@@ -5459,6 +5444,11 @@ eslint-visitor-keys@^1.0.0, eslint-visitor-keys@^1.1.0, eslint-visitor-keys@^1.2
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.3.0.tgz#30ebd1ef7c2fdff01c3a4f151044af25fab0523e"
   integrity sha512-6J72N8UNa462wa/KFODt/PJ3IU60SDpC3QXC1Hjc1BXXpfL2C9R5+AU7jhe0F6GREqVMh4Juu+NY7xn+6dipUQ==
 
+eslint-visitor-keys@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz#21fdc8fbcd9c795cc0321f0563702095751511a8"
+  integrity sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==
+
 eslint@^7.4.0:
   version "7.4.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.4.0.tgz#4e35a2697e6c1972f9d6ef2b690ad319f80f206f"
@@ -6338,11 +6328,6 @@ globalthis@^1.0.0:
     function-bind "^1.1.1"
     object-keys "^1.0.12"
 
-globalyzer@^0.1.0:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/globalyzer/-/globalyzer-0.1.4.tgz#bc8e273afe1ac7c24eea8def5b802340c5cc534f"
-  integrity sha512-LeguVWaxgHN0MNbWC6YljNMzHkrCny9fzjmEUdnF1kQ7wATFD1RHFRqA1qxaX2tgxGENlcxjOflopBwj3YZiXA==
-
 globby@^10.0.1:
   version "10.0.2"
   resolved "https://registry.yarnpkg.com/globby/-/globby-10.0.2.tgz#277593e745acaa4646c3ab411289ec47a0392543"
@@ -6357,7 +6342,7 @@ globby@^10.0.1:
     merge2 "^1.2.3"
     slash "^3.0.0"
 
-globby@^11, globby@^11.0.0:
+globby@^11, globby@^11.0.0, globby@^11.0.1:
   version "11.0.1"
   resolved "https://registry.yarnpkg.com/globby/-/globby-11.0.1.tgz#9a2bf107a068f3ffeabc49ad702c79ede8cfd357"
   integrity sha512-iH9RmgwCmUJHi2z5o2l3eTtGBtXek1OYlHrbcxOYugyHLmAsZrPj43OtHThd62Buh/Vv6VyCBD2bdyWcGNQqoQ==
@@ -6369,11 +6354,6 @@ globby@^11, globby@^11.0.0:
     merge2 "^1.3.0"
     slash "^3.0.0"
 
-globrex@^0.1.1:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/globrex/-/globrex-0.1.2.tgz#dd5d9ec826232730cd6793a5e33a9302985e6098"
-  integrity sha512-uHJgbwAMwNFf5mLst7IWLNg14x1CkeqglJb/K3doi4dw6q2IvAAmM/Y81kevy83wP+Sst+nutFTYOGg3d1lsxg==
-
 globule@^1.0.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/globule/-/globule-1.3.1.tgz#90a25338f22b7fbeb527cee63c629aea754d33b9"
@@ -12280,14 +12260,6 @@ through@2, "through@>=2.2.7 <3", through@^2.3.6, through@^2.3.8:
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
   integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
 
-tiny-glob@^0.2.6:
-  version "0.2.6"
-  resolved "https://registry.yarnpkg.com/tiny-glob/-/tiny-glob-0.2.6.tgz#9e056e169d9788fe8a734dfa1ff02e9b92ed7eda"
-  integrity sha512-A7ewMqPu1B5PWwC3m7KVgAu96Ch5LA0w4SnEN/LbDREj/gAD0nPWboRbn8YoP9ISZXqeNAlMvKSKoEuhcfK3Pw==
-  dependencies:
-    globalyzer "^0.1.0"
-    globrex "^0.1.1"
-
 tinycolor2@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/tinycolor2/-/tinycolor2-1.4.1.tgz#f4fad333447bc0b07d4dc8e9209d8f39a8ac77e8"
@@ -12574,10 +12546,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.9.5:
-  version "3.9.5"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.5.tgz#586f0dba300cde8be52dd1ac4f7e1009c1b13f36"
-  integrity sha512-hSAifV3k+i6lEoCJ2k6R2Z/rp/H3+8sdmcn5NrS3/3kE7+RyZXm9aqvxWqjEXHAd8b0pShatpcdMTvEdvAJltQ==
+typescript@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.3.tgz#153bbd468ef07725c1df9c77e8b453f8d36abba5"
+  integrity sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==
 
 ua-parser-js@^0.7.18:
   version "0.7.20"
diff --git a/flipper-js-client-sdk/package.json b/flipper-js-client-sdk/package.json
index db13b4899..993ef8a8a 100644
--- a/flipper-js-client-sdk/package.json
+++ b/flipper-js-client-sdk/package.json
@@ -27,7 +27,7 @@
   "licenseFilename": "LICENSE",
   "readmeFilename": "README.md",
   "devDependencies": {
-    "typescript": "^4.0.2",
+    "typescript": "^4.0.3",
     "@typescript-eslint/eslint-plugin": "^2.27.0",
     "@typescript-eslint/parser": "^2.19.2",
     "ansi-to-html": "^0.6.3",
diff --git a/flipper-js-client-sdk/yarn.lock b/flipper-js-client-sdk/yarn.lock
index a3415c0ff..e073480dc 100644
--- a/flipper-js-client-sdk/yarn.lock
+++ b/flipper-js-client-sdk/yarn.lock
@@ -1704,10 +1704,10 @@ type-fest@^0.8.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
 
-typescript@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.2.tgz#7ea7c88777c723c681e33bf7988be5d008d05ac2"
-  integrity sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==
+typescript@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.3.tgz#153bbd468ef07725c1df9c77e8b453f8d36abba5"
+  integrity sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==
 
 uri-js@^4.2.2:
   version "4.2.2"