diff --git a/package-lock.json b/package-lock.json
index 89af7a5..d5447ca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6184,9 +6184,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.5.tgz",
+      "integrity": "sha512-ywmr/VrTVCmNTJ6iV2LwIrfG1P+lv6luD8sUJs+2eI9NLGigaN+nUQc13iHqisq7bra9lnmUSYqbJvegraBOPQ==",
       "dev": true
     },
     "union-value": {
diff --git a/package.json b/package.json
index a71d483..a530de8 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "sinon": "^9.0.2",
     "source-map-support": "0.5.19",
     "ts-node": "9.0.0",
-    "typescript": "3.9.7"
+    "typescript": "4.0.5"
   },
   "husky": {
     "hooks": {