diff --git a/plinth/modules/ttrss/__init__.py b/plinth/modules/ttrss/__init__.py
index d8ad1b026..d6ec1327f 100644
--- a/plinth/modules/ttrss/__init__.py
+++ b/plinth/modules/ttrss/__init__.py
@@ -36,7 +36,7 @@ class TTRSSApp(app_module.App):
 
     app_id = 'ttrss'
 
-    _version = 3
+    _version = 4
 
     def __init__(self):
         """Create components for the app."""
diff --git a/plinth/modules/ttrss/privileged.py b/plinth/modules/ttrss/privileged.py
index 8f53f0ff2..34778b596 100644
--- a/plinth/modules/ttrss/privileged.py
+++ b/plinth/modules/ttrss/privileged.py
@@ -20,7 +20,10 @@ DB_BACKUP_FILE = '/var/lib/plinth/backups-data/ttrss-database.sql'
 def pre_setup():
     """Preseed debconf values before packages are installed."""
     action_utils.debconf_set_selections(
-        ['tt-rss tt-rss/database-type string pgsql'])
+        ['tt-rss tt-rss/database-type string pgsql',
+         'tt-rss tt-rss/purge boolean true',
+         'tt-rss tt-rss/dbconfig-remove boolean true',
+         'tt-rss tt-rss/dbconfig-reinstall boolean true'])
 
 
 @privileged