diff --git a/app/api/routers/users.py b/app/api/routers/users.py
index b58a3a5..22df8f1 100644
--- a/app/api/routers/users.py
+++ b/app/api/routers/users.py
@@ -285,8 +285,8 @@ def _reassign_user_references(db: Session, old_id: int, new_id: int) -> None:
     # Minimum workload / Essential
     db.query(MinimumWorkload).filter(MinimumWorkload.user_id == old_id).update(
         {"user_id": new_id})
-    db.query(Essential).filter(Essential.user_id == old_id).update(
-        {"user_id": new_id})
+    db.query(Essential).filter(Essential.created_by_id == old_id).update(
+        {"created_by_id": new_id})
 
     # Agent profile
     db.query(Agent).filter(Agent.user_id == old_id).update(