diff --git a/extensions/package.json b/extensions/package.json
index 75b3235c7cc7b3646f95643ac161e1b8faf232d6..8d41ef689c12c5492eab3ec10ab8b46923268bcf 100644
--- a/extensions/package.json
+++ b/extensions/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "description": "Dependencies shared by all extensions",
   "dependencies": {
-    "typescript": "3.4.4"
+    "typescript": "3.4.5"
   },
   "scripts": {
     "postinstall": "node ./postinstall"
diff --git a/extensions/typescript-language-features/src/tsServer/server.ts b/extensions/typescript-language-features/src/tsServer/server.ts
index 21443c350a7664a8e74c0a6f642c7d00a2ddfc3d..b1cf5b785e31e4afab406f8dae3ea6aae1e0c8e2 100644
--- a/extensions/typescript-language-features/src/tsServer/server.ts
+++ b/extensions/typescript-language-features/src/tsServer/server.ts
@@ -209,7 +209,7 @@ export class TypeScriptServerSpawner {
 			args.push('--noGetErrOnBackgroundUpdate');
 		}
 
-		if (apiVersion.gte(API.v344)) {
+		if (apiVersion.gte(API.v345)) {
 			args.push('--validateDefaultNpmLocation');
 		}
 
diff --git a/extensions/typescript-language-features/src/utils/api.ts b/extensions/typescript-language-features/src/utils/api.ts
index 0c8060e2e3745953f0b3dedcd356d12446e07de6..01f3ac6e6a53911034ea044bce86ba89db4cf354 100644
--- a/extensions/typescript-language-features/src/utils/api.ts
+++ b/extensions/typescript-language-features/src/utils/api.ts
@@ -36,7 +36,7 @@ export default class API {
 	public static readonly v330 = API.fromSimpleString('3.3.0');
 	public static readonly v333 = API.fromSimpleString('3.3.3');
 	public static readonly v340 = API.fromSimpleString('3.4.0');
-	public static readonly v344 = API.fromSimpleString('3.4.4');
+	public static readonly v345 = API.fromSimpleString('3.4.5');
 	public static readonly v350 = API.fromSimpleString('3.5.0');
 
 
diff --git a/extensions/yarn.lock b/extensions/yarn.lock
index 4357f5258df23de78be79f082d0ae554a2dc2f42..149346bbb92a289594738219ec849c5977704b38 100644
--- a/extensions/yarn.lock
+++ b/extensions/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-typescript@3.4.4:
-  version "3.4.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.4.tgz#aac4a08abecab8091a75f10842ffa0631818f785"
-  integrity sha512-xt5RsIRCEaf6+j9AyOBgvVuAec0i92rgCaS3S+UVf5Z/vF2Hvtsw08wtUTJqp4djwznoAgjSxeCcU4r+CcDBJA==
+typescript@3.4.5:
+  version "3.4.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.5.tgz#2d2618d10bb566572b8d7aad5180d84257d70a99"
+  integrity sha512-YycBxUb49UUhdNMU5aJ7z5Ej2XGmaIBL0x34vZ82fn3hGvD+bgrMrVDpatgz2f7YxUMJxMkbWxJZeAvDxVe7Vw==