diff --git a/package.json b/package.json
index 2bc0f051..a1914c33 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "express": "^4.17.1",
     "express-ws": "^4.0.0",
     "glob": "^7.0.5",
-    "jsdom": "^16.3.0",
+    "jsdom": "^16.4.0",
     "mocha": "^8.1.0",
     "mustache": "^4.0.1",
     "node-pty": "^0.9.0",
diff --git a/yarn.lock b/yarn.lock
index 8d3a2d16..71ed6c47 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3337,10 +3337,10 @@ jsbn@~0.1.0:
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
   integrity sha1-peZUwuWi3rXyAdls77yoDA7y9RM=
 
-jsdom@^16.3.0:
-  version "16.3.0"
-  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-16.3.0.tgz#75690b7dac36c67be49c336dcd7219bbbed0810c"
-  integrity sha512-zggeX5UuEknpdZzv15+MS1dPYG0J/TftiiNunOeNxSl3qr8Z6cIlQpN0IdJa44z9aFxZRIVqRncvEhQ7X5DtZg==
+jsdom@^16.4.0:
+  version "16.4.0"
+  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-16.4.0.tgz#36005bde2d136f73eee1a830c6d45e55408edddb"
+  integrity sha512-lYMm3wYdgPhrl7pDcRmvzPhhrGVBeVhPIqeHjzeiHN3DFmD1RBpbExbi8vU7BJdH8VAZYovR8DMt0PNNDM7k8w==
   dependencies:
     abab "^2.0.3"
     acorn "^7.1.1"