diff --git a/package.json b/package.json
index bc4bc61..c680690 100644
--- a/package.json
+++ b/package.json
@@ -20,12 +20,12 @@
     "@types/ip-address": "7.0.0",
     "@types/mocha": "^10.0.1",
     "@types/node": "24.9.2",
-    "@types/sinon": "17.0.4",
+    "@types/sinon": "21.0.0",
     "ip-address": "10.0.1",
     "mocha": "^11.0.0",
     "prettier": "^3.5.3",
     "semantic-release": "^25.0.0",
-    "sinon": "21.0.0",
+    "sinon": "21.0.1",
     "ts-node": "^10.4.0",
     "typescript": "5.9.3"
   },