diff --git a/buildspec/shared/linux-pre_build.sh b/buildspec/shared/linux-pre_build.sh
index 25e9f0c879f..102103ff30c 100644
--- a/buildspec/shared/linux-pre_build.sh
+++ b/buildspec/shared/linux-pre_build.sh
@@ -22,5 +22,5 @@ if [ "$TOOLKITS_CODEARTIFACT_DOMAIN" ] && [ "$TOOLKITS_CODEARTIFACT_REPO" ] && [
 fi
 
 # TODO: move this to the "install" phase?
-export NODE_OPTIONS=--max-old-space-size=8192
+export NODE_OPTIONS='--max-old-space-size=8192'
 npm 2>&1 ci | run_and_report 2 'npm WARN deprecated' 'Deprecated dependencies must be updated.'
diff --git a/package-lock.json b/package-lock.json
index 93e117524fb..404c95a936e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,7 @@
                 "plugins/*"
             ],
             "dependencies": {
+                "@types/node": "^22.7.5",
                 "vscode-nls": "^5.2.0",
                 "vscode-nls-dev": "^4.0.4"
             },
@@ -7058,8 +7059,13 @@
             "license": "MIT"
         },
         "node_modules/@types/node": {
-            "version": "14.18.63",
-            "license": "MIT"
+            "version": "22.7.5",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-22.7.5.tgz",
+            "integrity": "sha512-jML7s2NAzMWc//QSJ1a3prpk78cOPchGvXJsC3C6R6PSMoooztvRVQEz89gmBTBY1SPMaqo5teB4uNHPdetShQ==",
+            "license": "MIT",
+            "dependencies": {
+                "undici-types": "~6.19.2"
+            }
         },
         "node_modules/@types/node-fetch": {
             "version": "2.6.9",
@@ -17778,6 +17784,12 @@
             "dev": true,
             "license": "MIT"
         },
+        "node_modules/undici-types": {
+            "version": "6.19.8",
+            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+            "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+            "license": "MIT"
+        },
         "node_modules/unescape-html": {
             "version": "1.1.0",
             "license": "MIT"
@@ -19394,7 +19406,7 @@
             },
             "engines": {
                 "npm": "^10.1.0",
-                "vscode": "^1.68.0"
+                "vscode": "^1.83.0"
             }
         },
         "packages/core/node_modules/@types/node": {
diff --git a/package.json b/package.json
index 869e7e5fe70..8de4db99c14 100644
--- a/package.json
+++ b/package.json
@@ -69,6 +69,7 @@
         "webpack-merge": "^5.10.0"
     },
     "dependencies": {
+        "@types/node": "^22.7.5",
         "vscode-nls": "^5.2.0",
         "vscode-nls-dev": "^4.0.4"
     }
diff --git a/packages/amazonq/scripts/build/copyFiles.ts b/packages/amazonq/scripts/build/copyFiles.ts
index c1b0861321d..725c66ad7c0 100644
--- a/packages/amazonq/scripts/build/copyFiles.ts
+++ b/packages/amazonq/scripts/build/copyFiles.ts
@@ -4,7 +4,7 @@
  */
 
 /* eslint-disable no-restricted-imports */
-import * as fs from 'fs-extra'
+import fs from 'fs'
 import * as path from 'path'
 
 // Moves all dependencies into `dist`
@@ -73,14 +73,14 @@ const tasks: CopyTask[] = [
     },
 ]
 
-async function copy(task: CopyTask): Promise<void> {
+function copy(task: CopyTask): void {
     const src = path.resolve(projectRoot, task.target)
     const dst = path.resolve(outRoot, task.destination ?? task.target)
 
     try {
-        await fs.copy(src, dst, {
+        fs.cpSync(src, dst, {
             recursive: true,
-            overwrite: true,
+            force: true,
             errorOnExist: false,
         })
     } catch (error) {
@@ -88,18 +88,20 @@ async function copy(task: CopyTask): Promise<void> {
     }
 }
 
-void (async () => {
-    const args = process.argv.slice(2)
-    if (args.includes('--vueHr')) {
-        vueHr = true
-        console.log('Using Vue Hot Reload webpacks from core/')
-    }
+const args = process.argv.slice(2)
+if (args.includes('--vueHr')) {
+    vueHr = true
+    console.log('Using Vue Hot Reload webpacks from core/')
+}
 
+function main() {
     try {
-        await Promise.all(tasks.map(copy))
+        tasks.map(copy)
     } catch (error) {
         console.error('`copyFiles.ts` failed')
         console.error(error)
         process.exit(1)
     }
-})()
+}
+
+void main()
diff --git a/packages/amazonq/test/e2e/amazonq/framework/jsdomInjector.ts b/packages/amazonq/test/e2e/amazonq/framework/jsdomInjector.ts
index ef92521b1d9..f5d2d1c2770 100644
--- a/packages/amazonq/test/e2e/amazonq/framework/jsdomInjector.ts
+++ b/packages/amazonq/test/e2e/amazonq/framework/jsdomInjector.ts
@@ -34,5 +34,5 @@ export function injectJSDOM() {
     })
 
     // jsdom doesn't have support for structuredClone. See https://github.com/jsdom/jsdom/issues/3363
-    global.structuredClone = (val) => JSON.parse(JSON.stringify(val))
+    global.structuredClone = (val: any) => JSON.parse(JSON.stringify(val))
 }
diff --git a/packages/core/scripts/build/copyFiles.ts b/packages/core/scripts/build/copyFiles.ts
index ee5c9492bcb..e926a6d9963 100644
--- a/packages/core/scripts/build/copyFiles.ts
+++ b/packages/core/scripts/build/copyFiles.ts
@@ -4,7 +4,7 @@
  */
 
 /* eslint-disable no-restricted-imports */
-import * as fs from 'fs-extra'
+import fs from 'fs'
 import * as path from 'path'
 
 // Moves all dependencies into `dist`
@@ -46,27 +46,28 @@ const tasks: CopyTask[] = [
     },
 ]
 
-async function copy(task: CopyTask): Promise<void> {
+function copy(task: CopyTask): void {
     const src = path.resolve(projectRoot, task.target)
     const dst = path.resolve(outRoot, task.destination ?? task.target)
 
     try {
-        await fs.copy(src, dst, {
+        fs.cpSync(src, dst, {
             recursive: true,
-            overwrite: true,
+            force: true,
             errorOnExist: false,
         })
     } catch (error) {
         throw new Error(`Copy "${src}" to "${dst}" failed: ${error instanceof Error ? error.message : error}`)
     }
 }
-
-void (async () => {
+function main() {
     try {
-        await Promise.all(tasks.map(copy))
+        tasks.map(copy)
     } catch (error) {
         console.error('`copyFiles.ts` failed')
         console.error(error)
         process.exit(1)
     }
-})()
+}
+
+void main()
diff --git a/packages/toolkit/scripts/build/copyFiles.ts b/packages/toolkit/scripts/build/copyFiles.ts
index 99c79124637..6cea899b4ca 100644
--- a/packages/toolkit/scripts/build/copyFiles.ts
+++ b/packages/toolkit/scripts/build/copyFiles.ts
@@ -4,7 +4,7 @@
  */
 
 /* eslint-disable no-restricted-imports */
-import * as fs from 'fs-extra'
+import fs from 'fs'
 import * as path from 'path'
 
 // Copies various dependencies into "dist/".
@@ -100,27 +100,28 @@ const tasks: CopyTask[] = [
     },
 ]
 
-async function copy(task: CopyTask): Promise<void> {
+function copy(task: CopyTask): void {
     const src = path.resolve(projectRoot, task.target)
     const dst = path.resolve(outRoot, task.destination ?? task.target)
 
     try {
-        await fs.copy(src, dst, {
+        fs.cpSync(src, dst, {
             recursive: true,
-            overwrite: true,
+            force: true,
             errorOnExist: false,
         })
     } catch (error) {
         throw new Error(`Copy "${src}" to "${dst}" failed: ${error instanceof Error ? error.message : error}`)
     }
 }
-
-void (async () => {
+function main() {
     try {
-        await Promise.all(tasks.map(copy))
+        tasks.map(copy)
     } catch (error) {
         console.error('`copyFiles.ts` failed')
         console.error(error)
         process.exit(1)
     }
-})()
+}
+
+void main()