diff --git a/docs/changelog-develop.md b/docs/changelog-develop.md
index 5ff6ef6..a3050b2 100644
--- a/docs/changelog-develop.md
+++ b/docs/changelog-develop.md
@@ -2,6 +2,11 @@
 
 This file documents changes on the develop branch of this project.
 
+## 2026-05-28 — Authentication: database migration
+
+### Added
+- Alembic migration `0003_auth_tables` creating `users`, `user_sessions`, `auth_audit`.
+
 ## 2026-05-28 — Authentication: hashing + password policy
 
 ### Added