diff --git a/package.json b/package.json
index 5c7028d6..48133255 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "create-external-adapter": "adapter-generator.js"
   },
   "devDependencies": {
-    "@sinonjs/fake-timers": "15.1.1",
+    "@sinonjs/fake-timers": "15.3.0",
     "@types/node": "24.12.2",
     "@types/sinonjs__fake-timers": "15.0.1",
     "@types/ws": "8.18.1",
diff --git a/yarn.lock b/yarn.lock
index 914d0901..26764a89 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -320,10 +320,10 @@
   dependencies:
     type-detect "4.0.8"
 
-"@sinonjs/fake-timers@15.1.1":
-  version "15.1.1"
-  resolved "https://registry.yarnpkg.com/@sinonjs/fake-timers/-/fake-timers-15.1.1.tgz#e1a6f7171941aadcc31d2cea1744264d58b8b34c"
-  integrity sha512-cO5W33JgAPbOh07tvZjUOJ7oWhtaqGHiZw+11DPbyqh2kHTBc3eF/CjJDeQ4205RLQsX6rxCuYOroFQwl7JDRw==
+"@sinonjs/fake-timers@15.3.0":
+  version "15.3.0"
+  resolved "https://registry.yarnpkg.com/@sinonjs/fake-timers/-/fake-timers-15.3.0.tgz#0638dd40960dce355955a56e1cf38b38a27275a2"
+  integrity sha512-m2xozxSfCIxjDdvbhIWazlP2i2aha/iUmbl94alpsIbd3iLTfeXgfBVbwyWogB6l++istyGZqamgA/EcqYf+Bg==
   dependencies:
     "@sinonjs/commons" "^3.0.1"