diff --git a/extensions/package-lock.json b/extensions/package-lock.json
index e3e87e1f52d..6694419fa1b 100644
--- a/extensions/package-lock.json
+++ b/extensions/package-lock.json
@@ -10,7 +10,7 @@
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
-        "typescript": "^5.8.2"
+        "typescript": "^5.8.3"
       },
       "devDependencies": {
         "@parcel/watcher": "2.5.1",
@@ -940,9 +940,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.8.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.2.tgz",
-      "integrity": "sha512-aJn6wq13/afZp/jT9QZmwEjDqqvSGp1VT5GVg+f/t6/oVyrgXM6BY1h9BRh/O5p3PlUPAe+WuiEZOmb/49RqoQ==",
+      "version": "5.8.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
+      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
diff --git a/extensions/package.json b/extensions/package.json
index d24575b17f5..eb206022d50 100644
--- a/extensions/package.json
+++ b/extensions/package.json
@@ -4,7 +4,7 @@
   "license": "MIT",
   "description": "Dependencies shared by all extensions",
   "dependencies": {
-    "typescript": "^5.8.2"
+    "typescript": "^5.8.3"
   },
   "scripts": {
     "postinstall": "node ./postinstall.mjs"
diff --git a/extensions/typescript-language-features/src/extension.browser.ts b/extensions/typescript-language-features/src/extension.browser.ts
index b87a41901bb..f39740bab23 100644
--- a/extensions/typescript-language-features/src/extension.browser.ts
+++ b/extensions/typescript-language-features/src/extension.browser.ts
@@ -61,7 +61,7 @@ export async function activate(context: vscode.ExtensionContext): Promise<Api> {
 		new TypeScriptVersion(
 			TypeScriptVersionSource.Bundled,
 			vscode.Uri.joinPath(context.extensionUri, 'dist/browser/typescript/tsserver.web.js').toString(),
-			API.fromSimpleString('5.6.2')));
+			API.fromSimpleString('5.8.3')));
 
 	let experimentTelemetryReporter: IExperimentationTelemetryReporter | undefined;
 	const packageInfo = getPackageInfo(context);