diff --git a/package-lock.json b/package-lock.json
index 2b35e7af..09d80feb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
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+      "resolved": "https://registry.npmjs.org/rrweb-cssom/-/rrweb-cssom-0.6.0.tgz",
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@@ -1137,9 +1123,9 @@
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+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.13.0.tgz",
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diff --git a/package.json b/package.json
index 82be01ff..521b5cc8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "scalatags",
   "devDependencies": {
-    "jsdom": "^20.0.3"
+    "jsdom": "^21.1.2"
   }
 }