diff --git a/packages/cli/package.json b/packages/cli/package.json
index 9be3060..bfc145a 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -37,7 +37,7 @@
     "@types/yargs": "^17.0.0",
     "tsx": "^4.16.0",
     "typescript": "^5.5.0",
-    "vitest": "^3.0.0",
+    "vitest": "^4.1.0",
     "@types/qrcode": "^1.5.5"
   }
 }
diff --git a/packages/daemon/package.json b/packages/daemon/package.json
index 884da7c..314ae3d 100644
--- a/packages/daemon/package.json
+++ b/packages/daemon/package.json
@@ -43,6 +43,6 @@
     "@types/node": "^22.0.0",
     "tsx": "^4.16.0",
     "typescript": "^5.5.0",
-    "vitest": "^3.0.0"
+    "vitest": "^4.1.0"
   }
 }
diff --git a/packages/discovery/package.json b/packages/discovery/package.json
index 1438f7c..1778a37 100644
--- a/packages/discovery/package.json
+++ b/packages/discovery/package.json
@@ -24,6 +24,6 @@
   "devDependencies": {
     "@types/node": "^22.19.11",
     "typescript": "^5.5.0",
-    "vitest": "^3.0.0"
+    "vitest": "^4.1.0"
   }
 }
diff --git a/packages/mcp-server/package.json b/packages/mcp-server/package.json
index c7c4c8f..426f795 100644
--- a/packages/mcp-server/package.json
+++ b/packages/mcp-server/package.json
@@ -32,6 +32,6 @@
     "@types/node": "^22.0.0",
     "tsx": "^4.16.0",
     "typescript": "^5.5.0",
-    "vitest": "^3.0.0"
+    "vitest": "^4.1.0"
   }
 }
diff --git a/packages/protocol/package.json b/packages/protocol/package.json
index 30fcd84..c2c799b 100644
--- a/packages/protocol/package.json
+++ b/packages/protocol/package.json
@@ -22,6 +22,6 @@
   },
   "devDependencies": {
     "typescript": "^5.5.0",
-    "vitest": "^3.0.0"
+    "vitest": "^4.1.0"
   }
 }