diff --git a/cloudreve/4.0.0/data.yml b/cloudreve/4.0.0/data.yml
index 27e8e7691..7d39ebe4d 100644
--- a/cloudreve/4.0.0/data.yml
+++ b/cloudreve/4.0.0/data.yml
@@ -25,8 +25,6 @@ additionalProperties:
           value: postgres
         - label: MySQL
           value: mysql
-        - label: MariaDB
-          value: mariadb
     - default: cloudreve
       envKey: PANEL_DB_NAME
       labelEn: Database
diff --git a/cloudreve/4.0.0/data/cloudreve.db b/cloudreve/4.0.0/data/cloudreve.db
deleted file mode 100644
index e69de29bb..000000000
diff --git a/cloudreve/4.0.0/data/conf.ini b/cloudreve/4.0.0/data/conf.ini
deleted file mode 100644
index e69de29bb..000000000