diff --git a/package.json b/package.json
index 6cead825c29..d3a3e8af8e6 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "prettier": "^2.8.8",
     "puppeteer-core": "^22.4.0",
     "squoosh": "discourse/squoosh#dc9649d",
-    "typescript": "^5.3.3"
+    "typescript": "^5.4.2"
   },
   "scripts": {
     "dev": "concurrently \"bin/ember-cli server --environment=development\" \"RAILS_ENV=development bin/rails server\"",
diff --git a/yarn.lock b/yarn.lock
index b226ff6b5e5..694699025eb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12415,10 +12415,10 @@ typescript-memoize@^1.0.0-alpha.3, typescript-memoize@^1.0.1:
   resolved "https://registry.yarnpkg.com/typescript-memoize/-/typescript-memoize-1.1.1.tgz#02737495d5df6ebf72c07ba0d002e8f4cf5ccfa0"
   integrity sha512-GQ90TcKpIH4XxYTI2F98yEQYZgjNMOGPpOgdjIBhaLaWji5HPWlRnZ4AeA1hfBxtY7bCGDJsqDDHk/KaHOl5bA==
 
-typescript@^5.3.3:
-  version "5.3.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.3.3.tgz#b3ce6ba258e72e6305ba66f5c9b452aaee3ffe37"
-  integrity sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==
+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==
 
 uc.micro@^1.0.1, uc.micro@^1.0.5:
   version "1.0.6"