diff --git a/README.md b/README.md
index b955622..c3e6395 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,8 @@ Flow:
 # Requirements
 1. ownCloud 9.1.0.7+
 2. Nextcloud 9+
-3. Backend database is MariaDB/MySQL
+
+Supports SQLite and MariaDB, PostgreSQL support is [enabled but not tested](https://github.com/pellaeon/registration/issues/24#issuecomment-294504028).
 
 # Install
 1. Place this app in `owncloud/apps/` or `nextcloud/apps`
diff --git a/appinfo/info.xml b/appinfo/info.xml
index 18d2cb2..4896a97 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -12,6 +12,7 @@
 	<repository>https://github.com/pellaeon/registration</repository>
 	<dependencies>
 		<database>sqlite</database>
+		<database>pgsql</database>
 		<database min-version="5.5">mysql</database>
 		<owncloud min-version="9.0" max-version="9.2"/>
 		<nextcloud min-version="9" max-version="12" />