diff --git a/package.json b/package.json
index fdb9c07..396349f 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "license": "ISC",
   "devDependencies": {
     "jest": "^21.2.1",
-    "jsdom": "^11.3.0",
+    "jsdom": "^27.0.0",
     "probot": "^6.0.0",
     "standard": "^10.0.3"
   },