diff --git a/package-lock.json b/package-lock.json
index f53c700..2fe9778 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4739,9 +4739,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.7.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.7.5.tgz",
-      "integrity": "sha512-/P5lkRXkWHNAbcJIiHPfRoKqyd7bsyCma1hZNUGfn20qm64T6ZBlrzprymeu918H+mB/0rIg2gGK/BXkhhYgBw==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.5.tgz",
+      "integrity": "sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ==",
       "dev": true
     },
     "unc-path-regex": {
diff --git a/package.json b/package.json
index 6f2db32..37dd6a4 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "mocha-typescript": "^1.1",
     "tjson-js": "^0.1",
     "ts-node": "^8.3",
-    "typescript": "^3.0"
+    "typescript": "^4.0"
   },
   "dependencies": {}
 }