diff --git a/package.json b/package.json
index 2277da2..5e1292f 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,6 @@
     "eslint": "6.8.0",
     "mocha": "7.2.0",
     "ts-node": "8.10.2",
-    "typescript": "3.9.9"
+    "typescript": "5.4.2"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index d1f9703..3f6d9d8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1685,10 +1685,10 @@ type-fest@^0.8.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
 
-typescript@3.9.9:
-  version "3.9.9"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.9.tgz#e69905c54bc0681d0518bd4d587cc6f2d0b1a674"
-  integrity sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==
+typescript@5.4.2:
+  version "5.4.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.4.2.tgz#0ae9cebcfae970718474fe0da2c090cad6577372"
+  integrity sha512-+2/g0Fds1ERlP6JsakQQDXjZdZMM+rqpamFZJEKh4kwTIn3iDkgKtby0CeNd5ATNZ4Ry1ax15TMx0W2V+miizQ==
 
 unbox-primitive@^1.0.0:
   version "1.0.1"