diff --git a/package-lock.json b/package-lock.json
index 3b866cc..39db8a1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8869,9 +8869,9 @@
       }
     },
     "typescript": {
-      "version": "3.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
-      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
+      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
       "dev": true
     },
     "unicode-canonical-property-names-ecmascript": {
diff --git a/package.json b/package.json
index 572d479..650289e 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "rollup": "^2.18.1",
     "tap-dot-b": "^1.0.1",
     "tslib": "^2.0.0",
-    "typescript": "^3.8.3",
+    "typescript": "^4.2.4",
     "watch": "^1.0.2"
   },
   "files": [