diff --git a/package-lock.json b/package-lock.json
index 4c5ce46..2c59fcc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -240,9 +240,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.3.tgz",
+      "integrity": "sha512-tEu6DGxGgRJPb/mVPIZ48e69xCn2yRmCgYmDugAVwmJ6o+0u1RI18eO7E7WBTLYLaEVVOhwQmcdhQHweux/WPg==",
       "dev": true
     }
   }
diff --git a/package.json b/package.json
index cf178ed..3d91cbc 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "rollup": "1.32.1",
     "rollup-plugin-terser": "5.3.1",
-    "typescript": "3.9.7"
+    "typescript": "4.0.3"
   },
   "dependencies": {}
 }