diff --git a/overrides/build-systems.json b/overrides/build-systems.json
index d5423d4..1ef63f3 100644
--- a/overrides/build-systems.json
+++ b/overrides/build-systems.json
@@ -1677,6 +1677,9 @@
   "traceback2": [
     "pbr"
   ],
+  "traitlets": [
+    "flit-core"
+  ],
   "transmission-rpc": [
     "poetry-core"
   ],