diff --git a/package-lock.json b/package-lock.json
index 4edec2fa..9111f2ce 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -119,7 +119,7 @@
         "sass-embedded": "=1.86.0",
         "sass-loader": "^16.0.4",
         "shx": "=0.4.0",
-        "sinon": "=19.0.2",
+        "sinon": "=19.0.4",
         "source-map-support": "^0.5.21",
         "start-server-and-test": "^2.0.11",
         "stream-browserify": "^3.0.0",
@@ -24561,12 +24561,14 @@
       "license": "ISC"
     },
     "node_modules/sinon": {
-      "version": "19.0.2",
+      "version": "19.0.4",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-19.0.4.tgz",
+      "integrity": "sha512-myidFob7fjmYHJb+CHNLtAYScxn3sngGq4t75L2rCGGpE/k4OQVkN3KE5FsN+XkO2+fcDZ65PGvq3KHrlLAm7g==",
       "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",
diff --git a/package.json b/package.json
index eec25512..f859d72f 100644
--- a/package.json
+++ b/package.json
@@ -183,7 +183,7 @@
     "sass-embedded": "=1.86.0",
     "sass-loader": "^16.0.4",
     "shx": "=0.4.0",
-    "sinon": "=19.0.2",
+    "sinon": "=19.0.4",
     "source-map-support": "^0.5.21",
     "start-server-and-test": "^2.0.11",
     "stream-browserify": "^3.0.0",