diff --git a/package.json b/package.json
index 307b300..5f4c49b 100644
--- a/package.json
+++ b/package.json
@@ -33,12 +33,12 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.26.0",
-    "@jest/globals": "^29.7.0",
-    "@sveltejs/vite-plugin-svelte": "^5.0.3",
+    "@jest/globals": "^30.2.0",
+    "@sveltejs/vite-plugin-svelte": "^6.2.1",
     "@testing-library/dom": "^10.4.1",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/user-event": "^14.6.1",
-    "@vitest/coverage-v8": "^3.1.3",
+    "@vitest/coverage-v8": "^4.0.16",
     "@vitest/eslint-plugin": "^1.1.44",
     "all-contributors-cli": "^6.26.1",
     "eslint": "^9.26.0",
@@ -48,13 +48,13 @@
     "eslint-plugin-simple-import-sort": "^12.1.1",
     "eslint-plugin-svelte": "^3.5.1",
     "eslint-plugin-testing-library": "^7.1.1",
-    "eslint-plugin-unicorn": "^59.0.1",
+    "eslint-plugin-unicorn": "^62.0.0",
     "expect-type": "^1.2.1",
-    "globals": "^16.1.0",
-    "happy-dom": "^17.4.6",
-    "jest": "^29.7.0",
-    "jest-environment-jsdom": "^29.7.0",
-    "jsdom": "^26.1.0",
+    "globals": "^17.0.0",
+    "happy-dom": "^20.0.11",
+    "jest": "^30.2.0",
+    "jest-environment-jsdom": "^30.2.0",
+    "jsdom": "^27.4.0",
     "prettier": "^3.5.3",
     "prettier-plugin-svelte": "^3.3.3",
     "remark-cli": "^12.0.1",
@@ -67,8 +67,8 @@
     "typescript-eslint": "^8.32.0",
     "typescript-svelte-plugin": "^0.3.46",
     "unified-prettier": "^2.0.1",
-    "vite": "^6.3.5",
-    "vitest": "^3.1.3"
+    "vite": "^7.3.0",
+    "vitest": "^4.0.16"
   },
   "packageManager": "pnpm@10.22.0+sha512.bf049efe995b28f527fd2b41ae0474ce29186f7edcb3bf545087bd61fbbebb2bf75362d1307fda09c2d288e1e499787ac12d4fcb617a974718a6051f2eee741c"
 }
diff --git a/packages/svelte/src/vitest.js b/packages/svelte/src/vitest.js
index ebbbb41..5b80032 100644
--- a/packages/svelte/src/vitest.js
+++ b/packages/svelte/src/vitest.js
@@ -1,11 +1,12 @@
 import { act, cleanup, setup } from '@testing-library/svelte'
 import { beforeEach } from 'vitest'
 
+const afterEach = async () => {
+  await act()
+  cleanup()
+}
+
 beforeEach(() => {
   setup()
-
-  return async () => {
-    await act()
-    cleanup()
-  }
+  return afterEach
 })
diff --git a/tests/cleanup.test.js b/tests/cleanup.test.js
index d0ae026..d5c435c 100644
--- a/tests/cleanup.test.js
+++ b/tests/cleanup.test.js
@@ -27,7 +27,7 @@ describe('cleanup', () => {
       throw new Error('oh no!')
     })
 
-    expect(renderSubject).toThrowError()
+    expect(renderSubject).toThrow()
     cleanup()
 
     expect(document.body).toBeEmptyDOMElement()