diff --git a/packages/preact/package.json b/packages/preact/package.json
index a9e06e0..fd4e71e 100644
--- a/packages/preact/package.json
+++ b/packages/preact/package.json
@@ -80,14 +80,14 @@
     "@testing-library/dom": "^10.0.0",
     "@testing-library/jest-dom": "^6.5.0",
     "@testing-library/preact": "^3.2.4",
-    "@vitest/browser": "^3.2.4",
-    "@vitest/coverage-v8": "^3.0.0",
+    "@vitest/browser": "^4.0.0",
+    "@vitest/coverage-v8": "^4.0.0",
     "playwright": "^1.56.0",
     "preact": "^10.26.1",
     "size-limit": "^11.1.2",
     "storybook": "^9.1.16",
     "typescript": "^5.3.3",
     "vite": "^7.1.11",
-    "vitest": "^3.0.0"
+    "vitest": "^4.0.0"
   }
 }
diff --git a/packages/react/package.json b/packages/react/package.json
index d03c2b7..63495f6 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -81,8 +81,8 @@
     "@testing-library/react": "^16.3.0",
     "@types/react": "^19.0.2",
     "@vitejs/plugin-react": "^5.0.4",
-    "@vitest/browser": "^3.2.4",
-    "@vitest/coverage-v8": "^3.0.0",
+    "@vitest/browser": "^4.0.0",
+    "@vitest/coverage-v8": "^4.0.0",
     "playwright": "^1.56.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
@@ -90,6 +90,6 @@
     "storybook": "^9.1.13",
     "typescript": "^5.3.3",
     "vite": "^7.1.11",
-    "vitest": "^3.0.0"
+    "vitest": "^4.0.0"
   }
 }
diff --git a/packages/solid-js/package.json b/packages/solid-js/package.json
index 0b80a00..62b1924 100644
--- a/packages/solid-js/package.json
+++ b/packages/solid-js/package.json
@@ -78,8 +78,8 @@
     "@solidjs/testing-library": "^0.8.10",
     "@testing-library/dom": "^10.0.0",
     "@testing-library/jest-dom": "^6.5.0",
-    "@vitest/browser": "^3.2.4",
-    "@vitest/coverage-v8": "^3.0.0",
+    "@vitest/browser": "^4.0.0",
+    "@vitest/coverage-v8": "^4.0.0",
     "jsdom": "^27.1.0",
     "playwright": "^1.56.0",
     "size-limit": "^11.1.2",
@@ -89,6 +89,6 @@
     "typescript": "^5.3.3",
     "vite": "^7.1.11",
     "vite-plugin-solid": "^2.10.2",
-    "vitest": "^3.0.0"
+    "vitest": "^4.0.0"
   }
 }
diff --git a/packages/svelte/package.json b/packages/svelte/package.json
index bbd8f48..c97c2b7 100644
--- a/packages/svelte/package.json
+++ b/packages/svelte/package.json
@@ -81,14 +81,14 @@
     "@testing-library/dom": "^10.0.0",
     "@testing-library/jest-dom": "^6.5.0",
     "@testing-library/svelte": "^5.2.3",
-    "@vitest/browser": "^3.2.4",
-    "@vitest/coverage-v8": "^3.0.0",
+    "@vitest/browser": "^4.0.0",
+    "@vitest/coverage-v8": "^4.0.0",
     "playwright": "^1.56.0",
     "size-limit": "^11.1.2",
     "storybook": "9.1.13",
     "svelte": "^5.0.0",
     "typescript": "^5.3.3",
     "vite": "^7.0.0",
-    "vitest": "^3.0.0"
+    "vitest": "^4.0.0"
   }
 }
diff --git a/packages/vanilla/package.json b/packages/vanilla/package.json
index c24127a..02391e0 100644
--- a/packages/vanilla/package.json
+++ b/packages/vanilla/package.json
@@ -73,13 +73,13 @@
     "@storybook/html-vite": "^9.1.13",
     "@testing-library/dom": "^10.0.0",
     "@testing-library/jest-dom": "^6.5.0",
-    "@vitest/browser": "^3.2.4",
-    "@vitest/coverage-v8": "^3.0.0",
+    "@vitest/browser": "^4.0.0",
+    "@vitest/coverage-v8": "^4.0.0",
     "playwright": "^1.56.0",
     "size-limit": "^11.1.2",
     "storybook": "^9.1.13",
     "typescript": "^5.3.3",
     "vite": "^7.0.0",
-    "vitest": "^3.0.0"
+    "vitest": "^4.0.0"
   }
 }