diff --git a/package.json b/package.json
index 09ef2fa..6da3e8e 100644
--- a/package.json
+++ b/package.json
@@ -14,8 +14,8 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "@tc39/ecma262-biblio": "^2.1.2763",
-    "ecmarkup": "^19.0.0"
+    "@tc39/ecma262-biblio": "^2.1.2814",
+    "ecmarkup": "^20.0.0"
   },
   "engines": {
     "node": ">= 12"