diff --git a/package.json b/package.json
index 682841a444..443fe12b3c 100644
--- a/package.json
+++ b/package.json
@@ -122,7 +122,7 @@
     "react-dom": "18.3.1",
     "rollup-plugin-postcss-lit": "2.1.0",
     "sass": "1.77.1",
-    "sinon": "17.0.2",
+    "sinon": "18.0.0",
     "storybook": "8.1.0",
     "stylelint": "16.5.0",
     "stylelint-config-prettier-scss": "1.0.0",
diff --git a/yarn.lock b/yarn.lock
index 24d37ae31d..51d5faa295 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8631,10 +8631,10 @@ netmask@^2.0.2:
   resolved "https://registry.yarnpkg.com/netmask/-/netmask-2.0.2.tgz#8b01a07644065d536383835823bc52004ebac5e7"
   integrity sha512-dBpDMdxv9Irdq66304OLfEmQ9tbNRFnFTuZiLo+bD+r332bBmMJ8GBLXklIXXgxd3+v9+KUnZaUR5PJMa75Gsg==
 
-nise@^5.1.9:
-  version "5.1.9"
-  resolved "https://registry.yarnpkg.com/nise/-/nise-5.1.9.tgz#0cb73b5e4499d738231a473cd89bd8afbb618139"
-  integrity sha512-qOnoujW4SV6e40dYxJOb3uvuoPHtmLzIk4TFo+j0jPJoC+5Z9xja5qH5JZobEPsa8+YYphMrOSwnrshEhG2qww==
+nise@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/nise/-/nise-6.0.0.tgz#ae56fccb5d912037363c3b3f29ebbfa28bde8b48"
+  integrity sha512-K8ePqo9BFvN31HXwEtTNGzgrPpmvgciDsFz8aztFjt4LqKO/JeFD8tBOeuDiCMXrIl/m1YvfH8auSpxfaD09wg==
   dependencies:
     "@sinonjs/commons" "^3.0.0"
     "@sinonjs/fake-timers" "^11.2.2"
@@ -10130,16 +10130,16 @@ signal-exit@^4.0.1, signal-exit@^4.1.0:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-4.1.0.tgz#952188c1cbd546070e2dd20d0f41c0ae0530cb04"
   integrity sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==
 
-sinon@17.0.2:
-  version "17.0.2"
-  resolved "https://registry.yarnpkg.com/sinon/-/sinon-17.0.2.tgz#470894bcc2d24b01bad539722ea46da949892405"
-  integrity sha512-uihLiaB9FhzesElPDFZA7hDcNABzsVHwr3YfmM9sBllVwab3l0ltGlRV1XhpNfIacNDLGD1QRZNLs5nU5+hTuA==
+sinon@18.0.0:
+  version "18.0.0"
+  resolved "https://registry.yarnpkg.com/sinon/-/sinon-18.0.0.tgz#69ca293dbc3e82590a8b0d46c97f63ebc1e5fc01"
+  integrity sha512-+dXDXzD1sBO6HlmZDd7mXZCR/y5ECiEiGCBSGuFD/kZ0bDTofPYc6JaeGmPSF+1j1MejGUWkORbYOLDyvqCWpA==
   dependencies:
     "@sinonjs/commons" "^3.0.1"
     "@sinonjs/fake-timers" "^11.2.2"
     "@sinonjs/samsam" "^8.0.0"
     diff "^5.2.0"
-    nise "^5.1.9"
+    nise "^6.0.0"
     supports-color "^7"
 
 sisteransi@^1.0.5: