diff --git a/packages/core/package.json b/packages/core/package.json
index 084d37d..1a4d6c2 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -51,8 +51,8 @@
     "jsdom": "^27.1.0",
     "msw": "^2.10.4",
     "typescript": "^5.8.3",
-    "vite": "^7.3.0",
+    "vite": "^8.0.16",
     "vite-plugin-dts": "^4.5.4",
-    "vitest": "^3.2.4"
+    "vitest": "^4.1.8"
   }
 }
diff --git a/packages/fleet/package.json b/packages/fleet/package.json
index 817f4fe..10b4894 100644
--- a/packages/fleet/package.json
+++ b/packages/fleet/package.json
@@ -64,7 +64,7 @@
     "@types/libsodium-wrappers": "^0.8.2",
     "@types/node": "^22.15.0",
     "typescript": "^5.8.3",
-    "vitest": "^3.2.4"
+    "vitest": "^4.1.8"
   },
   "main": "index.js",
   "bugs": {
diff --git a/packages/mcp/package.json b/packages/mcp/package.json
index 3fa7f97..cbfa26f 100644
--- a/packages/mcp/package.json
+++ b/packages/mcp/package.json
@@ -65,8 +65,8 @@
     "js-yaml": "^4.1.1",
     "msw": "^2.10.4",
     "typescript": "^5.8.3",
-    "vite": "^7.3.0",
+    "vite": "^8.0.16",
     "vite-plugin-dts": "^4.5.4",
-    "vitest": "^3.2.4"
+    "vitest": "^4.1.8"
   }
 }
diff --git a/packages/merge/package.json b/packages/merge/package.json
index b1e12fa..88617da 100644
--- a/packages/merge/package.json
+++ b/packages/merge/package.json
@@ -56,6 +56,6 @@
     "@types/bun": "^1.3.9",
     "@types/node": "^22.15.0",
     "typescript": "^5.8.3",
-    "vitest": "^3.2.4"
+    "vitest": "^4.1.8"
   }
 }