diff --git a/package-lock.json b/package-lock.json
index 20f2f1e..01595b8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -980,9 +980,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.1.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.5.tgz",
+      "integrity": "sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==",
       "dev": true
     },
     "underscore": {
diff --git a/package.json b/package.json
index b5407a1..3f9eab2 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "glob": "^7.1.6",
     "mocha": "^6.2.3",
     "tslint": "^5.20.1",
-    "typescript": "^3.9.7",
+    "typescript": "^4.1.5",
     "vscode-test": "^1.4.0"
   },
   "engines": {