diff --git a/cspell.json b/cspell.jsonc
similarity index 86%
rename from cspell.json
rename to cspell.jsonc
index e718955..e628f0c 100644
--- a/cspell.json
+++ b/cspell.jsonc
@@ -13,7 +13,10 @@
     "*.min.js",
     "*.min.css",
     "*.map",
-    "jupyterlab_deepnote/labextension"
+    "jupyterlab_deepnote/labextension",
+    // CHANGELOG.md is generated and can contain unknown
+    // words from commit messages and git user names.
+    "CHANGELOG.md"
   ],
   "language": "en",
   "overrides": [