diff --git a/extensions/typescript/npm-shrinkwrap.json b/extensions/typescript/npm-shrinkwrap.json
index c26842b0f4d..032368984d7 100644
--- a/extensions/typescript/npm-shrinkwrap.json
+++ b/extensions/typescript/npm-shrinkwrap.json
@@ -13,9 +13,9 @@
       "resolved": "https://registry.npmjs.org/semver/-/semver-4.3.6.tgz"
     },
     "typescript": {
-      "version": "2.1.4",
-      "from": "typescript@2.1.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.1.4.tgz"
+      "version": "2.1.5-insiders.20161213",
+      "from": "typescript@2.1.5-insiders.20161213",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.1.5-insiders.20161213.tgz"
     },
     "vscode-extension-telemetry": {
       "version": "0.0.5",
diff --git a/extensions/typescript/package.json b/extensions/typescript/package.json
index 0d88ddc747c..c8e9471ace6 100644
--- a/extensions/typescript/package.json
+++ b/extensions/typescript/package.json
@@ -14,7 +14,7 @@
 		"semver": "4.3.6",
 		"vscode-extension-telemetry": "^0.0.5",
 		"vscode-nls": "^2.0.1",
-		"typescript": "2.1.4"
+		"typescript": "2.1.5-insiders.20161213"
 	},
 	"devDependencies": {
 		"@types/semver": "^5.3.30"