diff --git a/auth/group-sync/package.json b/auth/group-sync/package.json
index 3681608..e18a5b8 100644
--- a/auth/group-sync/package.json
+++ b/auth/group-sync/package.json
@@ -24,7 +24,7 @@
     "@types/node": "^26.5.1",
     "@vitest/coverage-v8": "4.1.11",
     "typescript": "^6.0.3",
-    "vitest": "4.1.11"
+    "vitest": "5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/auth/pre-token-gen/package.json b/auth/pre-token-gen/package.json
index 83cb578..2066ad4 100644
--- a/auth/pre-token-gen/package.json
+++ b/auth/pre-token-gen/package.json
@@ -19,7 +19,7 @@
     "@types/node": "^26.5.1",
     "@vitest/coverage-v8": "4.1.11",
     "typescript": "^6.0.3",
-    "vitest": "4.1.11"
+    "vitest": "5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/infra/package.json b/infra/package.json
index b225e8c..5726181 100644
--- a/infra/package.json
+++ b/infra/package.json
@@ -17,7 +17,7 @@
     "constructs": "10.8.1",
     "tsx": "4.23.13",
     "typescript": "^7.0.2",
-    "vitest": "4.1.11"
+    "vitest": "5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/package.json b/package.json
index be2ea1c..95955a0 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "prettier": "3.9.6",
     "tsx": "4.23.13",
     "typescript": "6.0.3",
-    "vitest": "4.1.11"
+    "vitest": "5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/packages/calendar/package.json b/packages/calendar/package.json
index 0f2a99f..2732208 100644
--- a/packages/calendar/package.json
+++ b/packages/calendar/package.json
@@ -22,6 +22,6 @@
   "devDependencies": {
     "@types/node": "^26.5.1",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   }
 }
diff --git a/packages/gmail/package.json b/packages/gmail/package.json
index 6e80f50..07f085b 100644
--- a/packages/gmail/package.json
+++ b/packages/gmail/package.json
@@ -29,6 +29,6 @@
   "devDependencies": {
     "@vitest/coverage-v8": "^4.1.11",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   }
 }
diff --git a/packages/google-maps/package.json b/packages/google-maps/package.json
index 4b946a6..0de743c 100644
--- a/packages/google-maps/package.json
+++ b/packages/google-maps/package.json
@@ -18,7 +18,7 @@
   "devDependencies": {
     "@types/node": "^26.5.1",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/packages/internal-data/package.json b/packages/internal-data/package.json
index ebb5029..e9c2c6d 100644
--- a/packages/internal-data/package.json
+++ b/packages/internal-data/package.json
@@ -20,7 +20,7 @@
     "@types/node": "^26.5.1",
     "@vitest/coverage-v8": "^4.1.11",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/packages/knowledge-base/package.json b/packages/knowledge-base/package.json
index 09dd988..d6e4321 100644
--- a/packages/knowledge-base/package.json
+++ b/packages/knowledge-base/package.json
@@ -26,7 +26,7 @@
     "@types/node": "^26.5.1",
     "@vitest/coverage-v8": "^4.1.11",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/packages/payments/package.json b/packages/payments/package.json
index 32e840d..8546552 100644
--- a/packages/payments/package.json
+++ b/packages/payments/package.json
@@ -26,7 +26,7 @@
     "@types/node": "^26.5.1",
     "@vitest/coverage-v8": "^4.1.11",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/packages/qbo/package.json b/packages/qbo/package.json
index 4c97c77..674cf2d 100644
--- a/packages/qbo/package.json
+++ b/packages/qbo/package.json
@@ -26,7 +26,7 @@
     "@types/node": "^26.5.1",
     "@vitest/coverage-v8": "^4.1.11",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   },
   "engines": {
     "node": ">=24.21.0"
diff --git a/packages/reminders/package.json b/packages/reminders/package.json
index 61b4c77..8ba4442 100644
--- a/packages/reminders/package.json
+++ b/packages/reminders/package.json
@@ -22,6 +22,6 @@
   "devDependencies": {
     "@types/node": "^26.5.1",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   }
 }
diff --git a/packages/shared/package.json b/packages/shared/package.json
index 1b97a39..ecefa84 100644
--- a/packages/shared/package.json
+++ b/packages/shared/package.json
@@ -27,7 +27,7 @@
     "@vitest/coverage-v8": "^4.1.11",
     "supertest": "7.2.2",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "1.30.0",
diff --git a/packages/tasks/package.json b/packages/tasks/package.json
index e0c8e48..d17260b 100644
--- a/packages/tasks/package.json
+++ b/packages/tasks/package.json
@@ -24,7 +24,7 @@
     "@sh-mcp/shared": "*"
   },
   "devDependencies": {
-    "vitest": "^4.1.11",
+    "vitest": "^5.0.1",
     "typescript": "^6.0.3"
   }
 }
diff --git a/servers/sh-mcp-finance/package.json b/servers/sh-mcp-finance/package.json
index 3000192..141ee50 100644
--- a/servers/sh-mcp-finance/package.json
+++ b/servers/sh-mcp-finance/package.json
@@ -31,6 +31,6 @@
     "constructs": "10.8.1",
     "tsx": "4.23.13",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   }
 }
diff --git a/servers/sh-mcp-ops/package.json b/servers/sh-mcp-ops/package.json
index ba6364d..832aadc 100644
--- a/servers/sh-mcp-ops/package.json
+++ b/servers/sh-mcp-ops/package.json
@@ -36,6 +36,6 @@
     "constructs": "10.8.1",
     "tsx": "4.23.13",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.11"
+    "vitest": "^5.0.1"
   }
 }