diff --git a/package-lock.json b/package-lock.json
index df44512..60acc99 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8361,9 +8361,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.9.9",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.9.tgz",
-      "integrity": "sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
       "dev": true
     },
     "typical": {
diff --git a/package.json b/package.json
index 2a717b7..8ebdd8a 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "husky": "4.3.8",
     "mocha": "7.2.0",
     "tslint": "5.20.1",
-    "typescript": "3.9.9"
+    "typescript": "4.2.4"
   },
   "dependencies": {
     "amazon-dax-client": "^1.2.2",