diff --git a/package.json b/package.json
index 54afb7d78e..368951269c 100644
--- a/package.json
+++ b/package.json
@@ -138,7 +138,7 @@
     "stylelint-config-standard-scss": "13.1.0",
     "stylelint-scss": "6.5.1",
     "ts-lit-plugin": "2.0.2",
-    "typescript": "5.5.4",
+    "typescript": "5.6.2",
     "typescript-eslint": "8.5.0",
     "urlpattern-polyfill": "10.0.0",
     "vite": "5.4.4",
diff --git a/src/elements/core/controllers/language-controller.spec.ts b/src/elements/core/controllers/language-controller.spec.ts
index b7e127f34c..3a94ca7e41 100644
--- a/src/elements/core/controllers/language-controller.spec.ts
+++ b/src/elements/core/controllers/language-controller.spec.ts
@@ -74,27 +74,4 @@ describe('LanguageController', () => {
     await aTimeout(0);
     expect(state.counter).to.equal(2);
   });
-
-  // This test can only be run in isolation, as LanguageController has global state.
-  // It is possible to verify this test by switching it to it.only.
-  // eslint-disable-next-line no-constant-condition
-  if (!'must be run in isolation') {
-    it('should only update language if connected', async () => {
-      document.documentElement.setAttribute('lang', 'fr');
-      await aTimeout(0);
-      expect(controller.current).to.equal('fr', 'Language should be detected when connected');
-      controller.hostDisconnected();
-
-      document.documentElement.setAttribute('lang', 'en');
-      await aTimeout(0);
-
-      expect(controller.current).to.equal('fr', 'Language should not be update when disconnected');
-
-      controller.hostConnected();
-      expect(controller.current).to.equal(
-        'en',
-        'Language should immediately be update when connected',
-      );
-    });
-  }
 });
diff --git a/yarn.lock b/yarn.lock
index 5b461b0666..4a0006f33d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10194,7 +10194,12 @@ typescript@5.4.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.4.2.tgz#0ae9cebcfae970718474fe0da2c090cad6577372"
   integrity sha512-+2/g0Fds1ERlP6JsakQQDXjZdZMM+rqpamFZJEKh4kwTIn3iDkgKtby0CeNd5ATNZ4Ry1ax15TMx0W2V+miizQ==
 
-typescript@5.5.4, typescript@^5.4.4, typescript@^5.4.5, typescript@^5.5.4:
+typescript@5.6.2:
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.6.2.tgz#d1de67b6bef77c41823f822df8f0b3bcff60a5a0"
+  integrity sha512-NW8ByodCSNCwZeghjN3o+JX5OFH0Ojg6sadjEKY4huZ52TqbJTJnDo5+Tw98lSy63NZvi4n+ez5m2u5d4PkZyw==
+
+typescript@^5.4.4, typescript@^5.4.5, typescript@^5.5.4:
   version "5.5.4"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
   integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==