diff --git a/package.json b/package.json
index 77bba08..af4c085 100644
--- a/package.json
+++ b/package.json
@@ -116,10 +116,10 @@
     "eslint-plugin-simple-import-sort": "^12.1.1",
     "eslint-plugin-svelte": "^2.42.0",
     "expect-type": "^1.1.0",
-    "happy-dom": "^16.3.0",
+    "happy-dom": "^17.1.8",
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",
-    "jsdom": "^25.0.0",
+    "jsdom": "^26.0.0",
     "npm-run-all": "^4.1.5",
     "prettier": "^3.3.3",
     "prettier-plugin-svelte": "^3.2.5",