diff --git a/package-lock.json b/package-lock.json
index 664204f3b..b6be03dad 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -177,7 +177,7 @@
         "qunit-dom": "^3.4.0",
         "rgb-hex": "^4.1.0",
         "shiki": "^2.0.3",
-        "sinon": "^19.0.2",
+        "sinon": "^20.0.0",
         "stylelint": "^16.13.2",
         "stylelint-config-standard": "^36.0.1",
         "stylelint-prettier": "^5.0.3",
@@ -8941,10 +8941,11 @@
       }
     },
     "node_modules/@sinonjs/fake-timers": {
-      "version": "13.0.2",
-      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-13.0.2.tgz",
-      "integrity": "sha512-4Bb+oqXZTSTZ1q27Izly9lv8B9dlV61CROxPiVtywwzv5SnytJqhvYe6FclHYuXml4cd1VHPo1zd5PmTeJozvA==",
+      "version": "13.0.5",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-13.0.5.tgz",
+      "integrity": "sha512-36/hTbH2uaWuGVERyC6da9YwGWnzUZXuPro/F2LfsdOsLnCojz/iSH8MxUt/FD2S5XBSVPhmArFUXcpCQ2Hkiw==",
       "dev": true,
+      "license": "BSD-3-Clause",
       "dependencies": {
         "@sinonjs/commons": "^3.0.1"
       }
@@ -8969,12 +8970,6 @@
         "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/@socket.io/component-emitter": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.0.tgz",
@@ -36412,12 +36407,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "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",
@@ -37733,28 +37722,6 @@
       "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==",
       "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/nise/node_modules/path-to-regexp": {
-      "version": "8.2.0",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.2.0.tgz",
-      "integrity": "sha512-TdrF7fW9Rphjq4RjrW0Kp2AW0Ahwu9sRGTkS6bvDi0SCwZlEZYmcfDbEsTz8RVk0EHIS/Vd1bv3JhG+1xZuAyQ==",
-      "dev": true,
-      "engines": {
-        "node": ">=16"
-      }
-    },
     "node_modules/no-case": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/no-case/-/no-case-3.0.4.tgz",
@@ -41898,16 +41865,16 @@
       "dev": true
     },
     "node_modules/sinon": {
-      "version": "19.0.2",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-19.0.2.tgz",
-      "integrity": "sha512-euuToqM+PjO4UgXeLETsfQiuoyPXlqFezr6YZDFwHR3t4qaX0fZUe1MfPMznTL5f8BWrVS89KduLdMUsxFCO6g==",
+      "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": {
         "@sinonjs/commons": "^3.0.1",
-        "@sinonjs/fake-timers": "^13.0.2",
+        "@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 b91183025..0c609a93e 100644
--- a/package.json
+++ b/package.json
@@ -184,7 +184,7 @@
     "qunit-dom": "^3.4.0",
     "rgb-hex": "^4.1.0",
     "shiki": "^2.0.3",
-    "sinon": "^19.0.2",
+    "sinon": "^20.0.0",
     "stylelint": "^16.13.2",
     "stylelint-config-standard": "^36.0.1",
     "stylelint-prettier": "^5.0.3",