diff --git a/package-lock.json b/package-lock.json
index 3bd14db..8f2d398 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2658,9 +2658,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.6.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.6.4.tgz",
-      "integrity": "sha512-unoCll1+l+YK4i4F8f22TaNVPRHcD9PA3yCuZ8g5e0qGqlVlJ/8FSateOLLSagn+Yg5+ZwuPkL8LFUc0Jcvksg==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
       "dev": true
     },
     "unique-string": {
diff --git a/package.json b/package.json
index 5f2eb1d..8e3f182 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "mocha": "3.5.3",
     "np": "3.1.0",
     "tslint": "5.18.0",
-    "typescript": "^3.6.2"
+    "typescript": "4.2.4"
   },
   "dependencies": {
     "@types/joi": "^13.0.2",