diff --git a/package.json b/package.json
index e088c2b5..d4d5bb85 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "mocha": "^11.0.1",
     "nock": "^14.0.0",
     "should": "^13.2.3",
-    "sinon": "^20.0.0"
+    "sinon": "^21.0.0"
   },
   "files": [
     "index.mjs",