diff --git a/README.md b/README.md
index 9fd3871..e82362c 100644
--- a/README.md
+++ b/README.md
@@ -230,8 +230,10 @@ scripts/
   backfill_sites.py
 test_local.py          # Parse sample emails through Claude locally (no AWS)
 tests/
+  requirements.txt         # Test-only deps (moto)
   conftest.py              # AWS env stubs + per-pipeline module loader
   test_pad_zip.py          # PO zip-code padding tests
   test_parse_raw_email.py  # MIME parsing tests (PO + WO handlers)
+  test_po_merge.py         # PO merge-write semantics tests (#97)
   test_ses_auth.py         # Sender-authentication parser tests (INFRA-107)
 ```