diff --git a/demo/package.json b/demo/package.json
index beddb77e..ed9a0ec4 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -23,7 +23,7 @@
     "react-router": "^5.1.2",
     "react-router-dom": "^5.1.2",
     "react-scripts": "3.4.4",
-    "typescript": "3.9.10"
+    "typescript": "5.4.2"
   },
   "scripts": {
     "start": "react-scripts start",
diff --git a/demo/yarn.lock b/demo/yarn.lock
index 1c17032b..b78752ad 100644
--- a/demo/yarn.lock
+++ b/demo/yarn.lock
@@ -11253,10 +11253,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA==
 
-typescript@3.9.10:
-  version "3.9.10"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.10.tgz#70f3910ac7a51ed6bef79da7800690b19bf778b8"
-  integrity sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==
+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@^1.0.2:
   version "1.0.2"