diff --git a/package.json b/package.json
index ed4d777..15137b9 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     }
   ],
   "devDependencies": {
-    "@sinonjs/fake-timers": "^14.0.0",
+    "@sinonjs/fake-timers": "^15.0.0",
     "@types/node": "^24.0.9",
     "c8": "^10.1.2",
     "cookie": "^1.0.1",