diff --git a/package-lock.json b/package-lock.json
index e7696b5..b5383ff 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1069,9 +1069,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.5.3.tgz",
-      "integrity": "sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true
     },
     "util-deprecate": {
diff --git a/package.json b/package.json
index 00e1778..5668cd6 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "chai": "^4.2.0",
     "chai-http": "^4.3.0",
     "mocha": "^6.2.0",
-    "typescript": "^3.5.3"
+    "typescript": "^4.3.5"
   },
   "dependencies": {
     "axios": "^0.19.0"