diff --git a/package.json b/package.json
index a7b4382e549d..409ef8012a2b 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "@rollup/plugin-json": "^4.1.0",
     "@rollup/plugin-node-resolve": "^13.0.0",
     "@rollup/plugin-replace": "^2.4.2",
+    "@types/node": "^16.7.13",
     "@typescript-eslint/eslint-plugin": "^4.18.0",
     "@typescript-eslint/parser": "^4.18.0",
     "babel-plugin-transform-charcodes": "^0.2.0",
diff --git a/packages/babel-helper-transform-fixture-test-runner/src/index.ts b/packages/babel-helper-transform-fixture-test-runner/src/index.ts
index ca938f2497a3..a6cc7507817c 100644
--- a/packages/babel-helper-transform-fixture-test-runner/src/index.ts
+++ b/packages/babel-helper-transform-fixture-test-runner/src/index.ts
@@ -23,7 +23,10 @@ const checkDuplicatedNodes = _checkDuplicatedNodes.default;
 
 const EXTERNAL_HELPERS_VERSION = "7.100.0";
 
-const cachedScripts = new QuickLRU({ maxSize: 10 });
+const cachedScripts = new QuickLRU<
+  string,
+  { code: string; cachedData?: Buffer }
+>({ maxSize: 10 });
 const contextModuleCache = new WeakMap();
 const sharedTestContext = createContext();
 
@@ -79,12 +82,10 @@ function createContext() {
 function runCacheableScriptInTestContext(
   filename: string,
   srcFn: () => string,
-  // todo(flow->ts) was Context type, but it is missing
-  context: any,
+  context: vm.Context,
   moduleCache: any,
 ) {
-  // todo(flow->ts) improve types
-  let cached: any = cachedScripts.get(filename);
+  let cached = cachedScripts.get(filename);
   if (!cached) {
     const code = `(function (exports, require, module, __filename, __dirname) {\n${srcFn()}\n});`;
     cached = {
@@ -102,9 +103,7 @@ function runCacheableScriptInTestContext(
     produceCachedData: true,
   });
 
-  // @ts-expect-error todo(flow->ts) improve types
   if (script.cachedDataProduced) {
-    // @ts-expect-error todo(flow->ts) improve types
     cached.cachedData = script.cachedData;
   }
 
@@ -129,8 +128,7 @@ function runCacheableScriptInTestContext(
 function runModuleInTestContext(
   id: string,
   relativeFilename: string,
-  // todo(flow->ts) was Context type, but it is missing
-  context: any,
+  context: vm.Context,
   moduleCache: any,
 ) {
   const filename = require.resolve(id, {
@@ -490,7 +488,7 @@ export default function (
               // the options object with useless options
               delete task.options.throws;
 
-              assert.throws(runTask, function (err) {
+              assert.throws(runTask, function (err: Error) {
                 assert.ok(
                   throwMsg === true || err.message.includes(throwMsg),
                   `
diff --git a/yarn.lock b/yarn.lock
index 03835d132d9c..433e61d69d60 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4242,10 +4242,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/node@npm:*":
-  version: 14.14.31
-  resolution: "@types/node@npm:14.14.31"
-  checksum: 635dc8a0898a923621e02ca179e17baa39fdfa44f0096fcc1b7046c9b32317e74a99956a7b45ca0e8069874f51f4e7873a418239a318a4b6e7936f6510ac5992
+"@types/node@npm:*, @types/node@npm:^16.7.13":
+  version: 16.7.13
+  resolution: "@types/node@npm:16.7.13"
+  checksum: e22d3b58e5c4b18d058b18ab75bb1bf27b2dcb83b798eac3cdb7a3b12725f7ee1343abc7b5d020d39869669045654ce7d38e952832a1f39f061da0fbebbf43df
   languageName: node
   linkType: hard
 
@@ -5727,6 +5727,7 @@ __metadata:
     "@rollup/plugin-json": ^4.1.0
     "@rollup/plugin-node-resolve": ^13.0.0
     "@rollup/plugin-replace": ^2.4.2
+    "@types/node": ^16.7.13
     "@typescript-eslint/eslint-plugin": ^4.18.0
     "@typescript-eslint/parser": ^4.18.0
     babel-plugin-transform-charcodes: ^0.2.0