diff --git a/CLAUDE.md b/CLAUDE.md
index 6efe82a..be95ee5 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -1,6 +1,6 @@
 # Paper Dynasty Database API
 
-FastAPI backend for baseball card game data. Peewee ORM with SQLite (WAL mode).
+FastAPI backend for baseball card game data. Peewee ORM with PostgreSQL.
 
 ## Commands
 
@@ -14,7 +14,7 @@ docker build -t paper-dynasty-db .                          # Build image
 ## Architecture
 
 - **Routers**: Domain-based in `app/routers_v2/` (cards, players, teams, packs, stats, gauntlets, scouting)
-- **ORM**: Peewee with SQLite (`storage/pd_master.db`, WAL journaling)
+- **ORM**: Peewee with PostgreSQL
 - **Card images**: Playwright/Chromium renders HTML templates → screenshots (see `routers_v2/players.py`)
 - **Logging**: Rotating files in `logs/database/{date}.log`
 
@@ -42,12 +42,11 @@ docker build -t paper-dynasty-db .                          # Build image
 - **API docs**: `/api/docs` and `/api/redoc`
 
 ### Key Env Vars
-`API_TOKEN`, `LOG_LEVEL`, `DATABASE_TYPE` (sqlite/postgresql), `POSTGRES_HOST`, `POSTGRES_DB`, `POSTGRES_USER`, `POSTGRES_PASSWORD`
+`API_TOKEN`, `LOG_LEVEL`, `DATABASE_TYPE`, `POSTGRES_HOST`, `POSTGRES_DB`, `POSTGRES_USER`, `POSTGRES_PASSWORD`
 
 ### Common Issues
 - 502 Bad Gateway → API container crashed; check `docker logs pd_api`
 - Card image generation failures → Playwright/Chromium issue; check for missing dependencies
-- SQLite locking (dev) → WAL mode should prevent, but check for long-running writes
 - DB connection errors → verify `POSTGRES_HOST` points to correct container name
 - **CI/CD**: Gitea Actions on PR to `main` — builds Docker image, auto-generates CalVer version (`YYYY.MM.BUILD`) on merge