diff --git a/package.json b/package.json
index c3c40d7c17..8b3b59e253 100644
--- a/package.json
+++ b/package.json
@@ -233,7 +233,7 @@
     "jest-image-snapshot": "^6.0.0",
     "jest-puppeteer": "^6.0.0",
     "jquery": "^3.4.1",
-    "jsdom": "^20.0.0",
+    "jsdom": "^21.0.0",
     "jsonml-to-react-element": "^1.1.11",
     "jsonml.js": "^0.1.0",
     "lint-staged": "^13.0.3",