diff --git a/package-lock.json b/package-lock.json
index 503bf33..e2ca1e1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29,7 +29,7 @@
         "mocha": "10.8.2",
         "prettier": "3.6.2",
         "semantic-release": "19.0.5",
-        "sinon": "20.0.0",
+        "sinon": "21.0.0",
         "sinon-chai": "3.7.0",
         "ts-node": "10.9.2",
         "typescript": "4.9.5"
@@ -7688,9 +7688,9 @@
       }
     },
     "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": {
diff --git a/package.json b/package.json
index bc5dc97..d9b0044 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "mocha": "10.8.2",
     "prettier": "3.6.2",
     "semantic-release": "19.0.5",
-    "sinon": "20.0.0",
+    "sinon": "21.0.0",
     "sinon-chai": "3.7.0",
     "ts-node": "10.9.2",
     "typescript": "4.9.5"