diff --git a/docs/DEVELOPMENT.md b/docs/DEVELOPMENT.md
index 66c61c5c7..4cbe5a3df 100644
--- a/docs/DEVELOPMENT.md
+++ b/docs/DEVELOPMENT.md
@@ -30,7 +30,7 @@ graph LR
 | ------------ | ------------------------------- | ----------------- |
 | Frontend     | Vue 3, Tailwind CSS v4, Vite    | `client/`         |
 | Backend      | NestJS 11, Fastify, Drizzle ORM | `server/`         |
-| Database     | PostgreSQL 16, pgvector         | Docker container  |
+| Database     | PostgreSQL 18, pgvector         | Docker container  |
 | Shared types | TypeScript                      | `packages/types/` |
 | Real-time    | Socket.IO                       | Server + Client   |
 
@@ -128,7 +128,7 @@ This installs dependencies for all three workspaces (server, client, packages/ty
 docker compose -f docker-compose.dev.yml up -d --wait
 ```
 
-This starts a PostgreSQL 16 container (with the `pgvector` extension) on port 5432. The `--wait` flag blocks until the database is healthy. Data is persisted in a named Docker volume across restarts.
+This starts a PostgreSQL 18 container (with the `pgvector` extension) on port 5432. The `--wait` flag blocks until the database is healthy. Data is persisted in a named Docker volume across restarts.
 
 > **Already have PostgreSQL running?** You can point `DATABASE_URL` in `server/.env` at your existing instance, but you will still need the `uuid-ossp`, `pg_trgm`, `unaccent`, and `vector` extensions installed. Using Docker is the easiest path.
 
diff --git a/docs/TESTING.md b/docs/TESTING.md
index 5b05ec8dc..ccbd83435 100644
--- a/docs/TESTING.md
+++ b/docs/TESTING.md
@@ -317,7 +317,7 @@ E2E suites are selected by `scripts/e2e/select-matrix.mjs`:
 - **Pull request / push to main / manual `CI` dispatch:** E2E is skipped in `.github/workflows/ci.yml`.
 
 Each selected suite runs as its own GitHub Actions job via the reusable
-`.github/workflows/e2e-runner.yml` workflow, which spins up a PostgreSQL 16 + pgvector service
+`.github/workflows/e2e-runner.yml` workflow, which spins up a PostgreSQL 18 + pgvector service
 container and calls `pnpm run e2e:run -- <suite-id>`.
 
 **Manual full run:** Trigger `.github/workflows/e2e.yml` from the Actions tab. It accepts an