diff --git a/package-lock.json b/package-lock.json
index 5989cbc..15990be 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "@semantic-release/changelog": "6.0.3",
         "@semantic-release/exec": "7.1.0",
         "@semantic-release/git": "10.0.1",
-        "@types/sinon": "20.0.0",
+        "@types/sinon": "21.0.0",
         "ava": "6.4.1",
         "c8": "10.1.3",
         "husky": "9.1.7",
@@ -2149,7 +2149,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/estree": "*",
         "@types/json-schema": "*"
@@ -2194,9 +2193,9 @@
       "license": "MIT"
     },
     "node_modules/@types/sinon": {
-      "version": "20.0.0",
-      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-20.0.0.tgz",
-      "integrity": "sha512-etYGUC6IEevDGSWvR9WrECRA01ucR2/Oi9XMBUAdV0g4bLkNf4HlZWGiGlDOq5lgwXRwcV+PSeKgFcW4QzzYOg==",
+      "version": "21.0.0",
+      "resolved": "https://registry.npmjs.org/@types/sinon/-/sinon-21.0.0.tgz",
+      "integrity": "sha512-+oHKZ0lTI+WVLxx1IbJDNmReQaIsQJjN2e7UUrJHEeByG7bFeKJYsv1E75JxTQ9QKJDp21bAa/0W2Xo4srsDnw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -2397,7 +2396,6 @@
       "integrity": "sha512-AbSv11fklGXV6T28dp2Me04Uw90R2iJ30g2bgLz529Koehrmkbs1r7paFqr1vPCZi7hHwYxYtxfyQMRC8QaVSg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.7.0",
         "@typescript-eslint/scope-manager": "8.46.4",
diff --git a/package.json b/package.json
index aaf500e..5c15454 100644
--- a/package.json
+++ b/package.json
@@ -197,7 +197,7 @@
     "@semantic-release/changelog": "6.0.3",
     "@semantic-release/exec": "7.1.0",
     "@semantic-release/git": "10.0.1",
-    "@types/sinon": "20.0.0",
+    "@types/sinon": "21.0.0",
     "ava": "6.4.1",
     "c8": "10.1.3",
     "husky": "9.1.7",