diff --git a/templates/basic-ts/package.json b/templates/basic-ts/package.json
index 17b3be3392..9bf3ff8bde 100644
--- a/templates/basic-ts/package.json
+++ b/templates/basic-ts/package.json
@@ -24,7 +24,7 @@
     "ioredis": "^5.10.1",
     "nock": "^14.0.5",
     "smee-client": "^5.0.0",
-    "vitest": "^3.2.4",
+    "vitest": "^4.0.0",
     "typescript": "^6.0.3"
   },
   "overrides": {
diff --git a/templates/git-data-js/package.json b/templates/git-data-js/package.json
index 4f0882f746..b24e76014d 100644
--- a/templates/git-data-js/package.json
+++ b/templates/git-data-js/package.json
@@ -21,7 +21,7 @@
   "devDependencies": {
     "nock": "^14.0.12",
     "smee-client": "^5.0.0",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.0"
   },
   "engines": {
     "node": "^20.18.1 || >= 22"