diff --git a/package-lock.json b/package-lock.json
index ffc6df85..d6e886e1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
 				"graceful-fs": "^4.2.11",
 				"mocha": "^11.7.5",
 				"nyc": "^15.1.0",
-				"sinon": "^16.1.3"
+				"sinon": "^21.0.1"
 			},
 			"engines": {
 				"node": "^20.11.0 || >=22.0.0",
@@ -63,6 +63,7 @@
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 			"dev": true,
+			"peer": true,
 			"dependencies": {
 				"@babel/code-frame": "^7.27.1",
 				"@babel/generator": "^7.28.5",
@@ -744,12 +745,13 @@
 			}
 		},
 		"node_modules/@sinonjs/fake-timers": {
-			"version": "10.3.0",
-			"resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-10.3.0.tgz",
-			"integrity": "sha512-V4BG07kuYSUkTCSBHG8G8TNhM+F19jXFWnQtzj+we8DrkpSBCee9Z3Ms8yiGer/dlmhe35/Xdgyo3/0rQKg7YA==",
+			"version": "15.1.0",
+			"resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-15.1.0.tgz",
+			"integrity": "sha512-cqfapCxwTGsrR80FEgOoPsTonoefMBY7dnUEbQ+GRcved0jvkJLzvX6F4WtN+HBqbPX/SiFsIRUp+IrCW/2I2w==",
 			"dev": true,
+			"license": "BSD-3-Clause",
 			"dependencies": {
-				"@sinonjs/commons": "^3.0.0"
+				"@sinonjs/commons": "^3.0.1"
 			}
 		},
 		"node_modules/@sinonjs/samsam": {
@@ -771,12 +773,6 @@
 				"node": ">=4"
 			}
 		},
-		"node_modules/@sinonjs/text-encoding": {
-			"version": "0.7.3",
-			"resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.3.tgz",
-			"integrity": "sha512-DE427ROAphMQzU4ENbliGYrBSYPXF+TtLg9S8vzeA+OF4ZKzoDdzfL8sxuMUGS/lgRhM6j1URSk9ghf7Xo1tyA==",
-			"dev": true
-		},
 		"node_modules/@types/estree": {
 			"version": "1.0.8",
 			"resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
@@ -875,6 +871,7 @@
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 			"integrity": "sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==",
 			"dev": true,
+			"peer": true,
 			"bin": {
 				"acorn": "bin/acorn"
 			},
@@ -1071,6 +1068,7 @@
 					"url": "https://github.com/sponsors/ai"
 				}
 			],
+			"peer": true,
 			"dependencies": {
 				"baseline-browser-mapping": "^2.9.0",
 				"caniuse-lite": "^1.0.30001759",
@@ -1534,6 +1532,7 @@
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 			"dev": true,
+			"peer": true,
 			"dependencies": {
 				"@eslint-community/eslint-utils": "^4.8.0",
 				"@eslint-community/regexpp": "^4.12.1",
@@ -2558,12 +2557,6 @@
 				"node": ">=6"
 			}
 		},
-		"node_modules/just-extend": {
-			"version": "6.2.0",
-			"resolved": "https://registry.npmjs.org/just-extend/-/just-extend-6.2.0.tgz",
-			"integrity": "sha512-cYofQu2Xpom82S6qD778jBDpwvvy39s1l/hrYij2u9AMdQcGRpaBu6kY4mVhuno5kJVi1DAz4aiphA2WI1/OAw==",
-			"dev": true
-		},
 		"node_modules/keyv": {
 			"version": "4.5.4",
 			"resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",
@@ -2976,28 +2969,6 @@
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 			"dev": true
 		},
-		"node_modules/nise": {
-			"version": "5.1.9",
-			"resolved": "https://registry.npmjs.org/nise/-/nise-5.1.9.tgz",
-			"integrity": "sha512-qOnoujW4SV6e40dYxJOb3uvuoPHtmLzIk4TFo+j0jPJoC+5Z9xja5qH5JZobEPsa8+YYphMrOSwnrshEhG2qww==",
-			"dev": true,
-			"dependencies": {
-				"@sinonjs/commons": "^3.0.0",
-				"@sinonjs/fake-timers": "^11.2.2",
-				"@sinonjs/text-encoding": "^0.7.2",
-				"just-extend": "^6.2.0",
-				"path-to-regexp": "^6.2.1"
-			}
-		},
-		"node_modules/nise/node_modules/@sinonjs/fake-timers": {
-			"version": "11.3.1",
-			"resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-11.3.1.tgz",
-			"integrity": "sha512-EVJO7nW5M/F5Tur0Rf2z/QoMo+1Ia963RiMtapiQrEWvY0iBUvADo8Beegwjpnle5BHkyHuoxSTW3jF43H1XRA==",
-			"dev": true,
-			"dependencies": {
-				"@sinonjs/commons": "^3.0.1"
-			}
-		},
 		"node_modules/node-preload": {
 			"version": "0.2.1",
 			"resolved": "https://registry.npmjs.org/node-preload/-/node-preload-0.2.1.tgz",
@@ -3500,12 +3471,6 @@
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 			"dev": true
 		},
-		"node_modules/path-to-regexp": {
-			"version": "6.3.0",
-			"resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-6.3.0.tgz",
-			"integrity": "sha512-Yhpw4T9C6hPpgPeA28us07OJeqZ5EzQTkbfwuhsUg0c237RomFoETJgmp2sa3F/41gfLE6G5cqcYwznmeEeOlQ==",
-			"dev": true
-		},
 		"node_modules/path-type": {
 			"version": "4.0.0",
 			"resolved": "https://registry.npmjs.org/path-type/-/path-type-4.0.0.tgz",
@@ -3918,16 +3883,16 @@
 			}
 		},
 		"node_modules/sinon": {
-			"version": "16.1.3",
-			"resolved": "https://registry.npmjs.org/sinon/-/sinon-16.1.3.tgz",
-			"integrity": "sha512-mjnWWeyxcAf9nC0bXcPmiDut+oE8HYridTNzBbF98AYVLmWwGRp2ISEpyhYflG1ifILT+eNn3BmKUJPxjXUPlA==",
+			"version": "21.0.1",
+			"resolved": "https://registry.npmjs.org/sinon/-/sinon-21.0.1.tgz",
+			"integrity": "sha512-Z0NVCW45W8Mg5oC/27/+fCqIHFnW8kpkFOq0j9XJIev4Ld0mKmERaZv5DMLAb9fGCevjKwaEeIQz5+MBXfZcDw==",
 			"dev": true,
+			"license": "BSD-3-Clause",
 			"dependencies": {
-				"@sinonjs/commons": "^3.0.0",
-				"@sinonjs/fake-timers": "^10.3.0",
-				"@sinonjs/samsam": "^8.0.0",
-				"diff": "^5.1.0",
-				"nise": "^5.1.4",
+				"@sinonjs/commons": "^3.0.1",
+				"@sinonjs/fake-timers": "^15.1.0",
+				"@sinonjs/samsam": "^8.0.3",
+				"diff": "^8.0.2",
 				"supports-color": "^7.2.0"
 			},
 			"funding": {
@@ -3936,10 +3901,11 @@
 			}
 		},
 		"node_modules/sinon/node_modules/diff": {
-			"version": "5.2.0",
-			"resolved": "https://registry.npmjs.org/diff/-/diff-5.2.0.tgz",
-			"integrity": "sha512-uIFDxqpRZGZ6ThOk84hEfqWoHx2devRFvpTZcTHur85vImfaxUbTW9Ryh4CpCuDnToOP1CEtXKIgytHBPVff5A==",
+			"version": "8.0.2",
+			"resolved": "https://registry.npmjs.org/diff/-/diff-8.0.2.tgz",
+			"integrity": "sha512-sSuxWU5j5SR9QQji/o2qMvqRNYRDOcBTgsJ/DeCf4iSN4gW+gNMXM7wFIP+fdXZxoNiAnHUTGjCr+TSWXdRDKg==",
 			"dev": true,
+			"license": "BSD-3-Clause",
 			"engines": {
 				"node": ">=0.3.1"
 			}
diff --git a/package.json b/package.json
index b975053d..36be65d4 100644
--- a/package.json
+++ b/package.json
@@ -96,6 +96,6 @@
 		"graceful-fs": "^4.2.11",
 		"mocha": "^11.7.5",
 		"nyc": "^15.1.0",
-		"sinon": "^16.1.3"
+		"sinon": "^21.0.1"
 	}
 }