diff --git a/PostgreSQL.md b/PostgreSQL.md
index eeb9bd3..f2b67ed 100644
--- a/PostgreSQL.md
+++ b/PostgreSQL.md
@@ -1,10 +1,10 @@
-# FerretDB
+## FerretDB
 
 Replacing MongoDB with FerretDB/SQLite or FerretDB/PostgreSQL. Needs testing, what are correct settings.
 
 https://forums.meteor.com/t/ferretdb-1-18-now-has-oplog-support-trying-replace-mongodb-6-x-with-ferretdb-postgresql-or-ferretdb-sqlite/61092
 
-# ToroDB
+## ToroDB
 
 ToroDB is not developed anymore. ToroDB was about adding MongoDB proxy to PostgreSQL or MySQL.