diff --git a/js/package.json b/js/package.json
index bf373b18..71c51ddd 100644
--- a/js/package.json
+++ b/js/package.json
@@ -3,7 +3,7 @@
   "description": "Oxigraph JS build and tests",
   "private": true,
   "devDependencies": {
-    "mocha": "^8.0.1",
+    "mocha": "^9.0.0",
     "@rdfjs/data-model": "1.1.2",
     "standard": "^16.0.0"
   },