diff --git a/package-lock.json b/package-lock.json
index 72c2d41..5f6ef59 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
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                 "mocha": "^11.0.1",
                 "prettier": "^3.4.2",
-                "sinon": "^19.0.2"
+                "sinon": "^20.0.0"
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         "node_modules/@aashutoshrathi/word-wrap": {
@@ -369,12 +369,6 @@
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-        "node_modules/@sinonjs/text-encoding": {
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-            "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.3.tgz",
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-        },
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             "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.6.tgz",
@@ -1349,12 +1343,6 @@
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-            "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-6.2.0.tgz",
-            "integrity": "sha512-cYofQu2Xpom82S6qD778jBDpwvvy39s1l/hrYij2u9AMdQcGRpaBu6kY4mVhuno5kJVi1DAz4aiphA2WI1/OAw==",
-            "dev": true
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             "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",
@@ -1586,19 +1574,6 @@
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             "dev": true
         },
-        "node_modules/nise": {
-            "version": "6.1.1",
-            "resolved": "https://registry.npmjs.org/nise/-/nise-6.1.1.tgz",
-            "integrity": "sha512-aMSAzLVY7LyeM60gvBS423nBmIPP+Wy7St7hsb+8/fc1HmeoHJfLO8CKse4u3BtOZvQLJghYPI2i/1WZrEj5/g==",
-            "dev": true,
-            "dependencies": {
-                "@sinonjs/commons": "^3.0.1",
-                "@sinonjs/fake-timers": "^13.0.1",
-                "@sinonjs/text-encoding": "^0.7.3",
-                "just-extend": "^6.2.0",
-                "path-to-regexp": "^8.1.0"
-            }
-        },
         "node_modules/normalize-path": {
             "version": "3.0.0",
             "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
@@ -1727,15 +1702,6 @@
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-        "node_modules/path-to-regexp": {
-            "version": "8.1.0",
-            "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.1.0.tgz",
-            "integrity": "sha512-Bqn3vc8CMHty6zuD+tG23s6v2kwxslHEhTj4eYaVKGIEB+YX/2wd0/rgXLFD9G9id9KCtbVy/3ZgmvZjpa0UdQ==",
-            "dev": true,
-            "engines": {
-                "node": ">=16"
-            }
-        },
         "node_modules/pathval": {
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             "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.1.tgz",
@@ -1899,9 +1865,9 @@
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         "node_modules/sinon": {
-            "version": "19.0.4",
-            "resolved": "https://registry.npmjs.org/sinon/-/sinon-19.0.4.tgz",
-            "integrity": "sha512-myidFob7fjmYHJb+CHNLtAYScxn3sngGq4t75L2rCGGpE/k4OQVkN3KE5FsN+XkO2+fcDZ65PGvq3KHrlLAm7g==",
+            "version": "20.0.0",
+            "resolved": "https://registry.npmjs.org/sinon/-/sinon-20.0.0.tgz",
+            "integrity": "sha512-+FXOAbdnj94AQIxH0w1v8gzNxkawVvNqE3jUzRLptR71Oykeu2RrQXXl/VQjKay+Qnh73fDt/oDfMo6xMeDQbQ==",
             "dev": true,
             "license": "BSD-3-Clause",
             "dependencies": {
@@ -1909,7 +1875,6 @@
                 "@sinonjs/fake-timers": "^13.0.5",
                 "@sinonjs/samsam": "^8.0.1",
                 "diff": "^7.0.0",
-                "nise": "^6.1.1",
                 "supports-color": "^7.2.0"
             },
             "funding": {
diff --git a/package.json b/package.json
index 282b5ef..b87c632 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
         "eslint": "^9.0.0",
         "mocha": "^11.0.1",
         "prettier": "^3.4.2",
-        "sinon": "^19.0.2"
+        "sinon": "^20.0.0"
     },
     "scripts": {
         "lint": "eslint lib/*.js tests/lib/*.js && prettier --check .",