diff --git a/package-lock.json b/package-lock.json
index b544945..bbdf875 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -858,9 +858,9 @@
             "dev": true
         },
         "typescript": {
-            "version": "2.9.2",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.9.2.tgz",
-            "integrity": "sha512-Gr4p6nFNaoufRIY4NMdpQRNmgxVIGMs4Fcu/ujdYk3nAZqk7supzBE9idmvfZIlH/Cuj//dvi+019qEue9lV0w==",
+            "version": "4.2.4",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+            "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
             "dev": true
         },
         "uri-js": {
diff --git a/package.json b/package.json
index 43a56c9..254d16e 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
         "@types/mocha": "^2.2.42",
         "@types/node": "^7.0.43",
         "tslint": "^5.8.0",
-        "typescript": "^2.6.1",
+        "typescript": "^4.2.4",
         "vscode": "^1.1.36"
     }
 }