diff --git a/package-lock.json b/package-lock.json
index 7013275..f61753f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "eslint": "8.57.1",
         "mocha": "11.4.0",
         "nyc": "17.1.0",
-        "sinon": "20.0.0"
+        "sinon": "21.0.0"
       },
       "engines": {
         "node": ">=16.0.0"
@@ -3173,9 +3173,9 @@
       "dev": true
     },
     "node_modules/sinon": {
-      "version": "20.0.0",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-20.0.0.tgz",
-      "integrity": "sha512-+FXOAbdnj94AQIxH0w1v8gzNxkawVvNqE3jUzRLptR71Oykeu2RrQXXl/VQjKay+Qnh73fDt/oDfMo6xMeDQbQ==",
+      "version": "21.0.0",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-21.0.0.tgz",
+      "integrity": "sha512-TOgRcwFPbfGtpqvZw+hyqJDvqfapr1qUlOizROIk4bBLjlsjlB00Pg6wMFXNtJRpu+eCZuVOaLatG7M8105kAw==",
       "dev": true,
       "license": "BSD-3-Clause",
       "dependencies": {
@@ -5971,9 +5971,9 @@
       "dev": true
     },
     "sinon": {
-      "version": "20.0.0",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-20.0.0.tgz",
-      "integrity": "sha512-+FXOAbdnj94AQIxH0w1v8gzNxkawVvNqE3jUzRLptR71Oykeu2RrQXXl/VQjKay+Qnh73fDt/oDfMo6xMeDQbQ==",
+      "version": "21.0.0",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-21.0.0.tgz",
+      "integrity": "sha512-TOgRcwFPbfGtpqvZw+hyqJDvqfapr1qUlOizROIk4bBLjlsjlB00Pg6wMFXNtJRpu+eCZuVOaLatG7M8105kAw==",
       "dev": true,
       "requires": {
         "@sinonjs/commons": "^3.0.1",
diff --git a/package.json b/package.json
index 2ed14cd..f5d2358 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "mocha": "11.4.0",
     "eslint": "8.57.1",
     "nyc": "17.1.0",
-    "sinon": "20.0.0"
+    "sinon": "21.0.0"
   },
   "license": "MIT",
   "engines": {