diff --git a/package-lock.json b/package-lock.json
index 72c0db5..fff9e0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2069,9 +2069,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.2.tgz",
-      "integrity": "sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true
     },
     "uri-js": {
diff --git a/package.json b/package.json
index 527c2bf..239de3b 100644
--- a/package.json
+++ b/package.json
@@ -206,7 +206,7 @@
 		"mocha": "^7.1.2",
 		"tslint": "^6.1.2",
 		"typemoq": "^2.1.0",
-		"typescript": "^3.9.2",
+		"typescript": "^4.3.5",
 		"vscode": "^1.1.37"
 	},
 	"dependencies": {