diff --git a/PLAN.md b/PLAN.md
index bae3096..fe0abeb 100644
--- a/PLAN.md
+++ b/PLAN.md
@@ -34,7 +34,7 @@ independent (see ARCHITECTURE §9.1).
 | # | Stage | Status |
 |---|-------|--------|
 | 0 | Scaffolding (go.work, backend skeleton, docs, CI) | **done** |
-| 1 | Backend foundation (config, server, Postgres+goose, sessions, accounts) | todo |
+| 1 | Backend foundation (config, server, Postgres+goose, sessions, accounts) | **done** |
 | 2 | Engine package over scrabble-solver | todo |
 | 3 | Game domain (lifecycle, rules, hint, word-check, history+GCG, stats) | todo |
 | 4 | Lobby & social (matchmaking, friends, block, chat, profile, nudge) | todo |