diff --git a/photoprism/config.json b/photoprism/config.json
index 7ef2c17e2..e61c76037 100644
--- a/photoprism/config.json
+++ b/photoprism/config.json
@@ -77,8 +77,6 @@
     "DB_TYPE": "sqlite",
     "IMPORT_PATH": "/share/photoprism/import",
     "ORIGINALS_PATH": "/share/photoprism/originals",
-    "PGID": 1000,
-    "PUID": 1000,
     "STORAGE_PATH": "/share/photoprism/storage",
     "UPLOAD_NSFW": "true",
     "certfile": "fullchain.pem",
@@ -103,8 +101,8 @@
     "DB_TYPE": "list(sqlite|mariadb_addon|external)",
     "IMPORT_PATH": "str",
     "ORIGINALS_PATH": "str",
-    "PGID": "int",
-    "PUID": "int",
+    "PGID": "int?",
+    "PUID": "int?",
     "STORAGE_PATH": "str",
     "UPLOAD_NSFW": "bool",
     "certfile": "str",