diff --git a/common/app/routes/challenges/components/classic/Editor.jsx b/common/app/routes/challenges/components/classic/Editor.jsx
index 344fdd04a6..12c034cd19 100644
--- a/common/app/routes/challenges/components/classic/Editor.jsx
+++ b/common/app/routes/challenges/components/classic/Editor.jsx
@@ -18,7 +18,7 @@ const mapStateToProps = createSelector(
 const editorDebounceTimeout = 750;
 
 const options = {
-  lint: true,
+  lint: {esversion: 6},
   lineNumbers: true,
   mode: 'javascript',
   theme: 'monokai',