diff --git a/.env.example b/.env.example
index eb509ff..ac8fd7a 100644
--- a/.env.example
+++ b/.env.example
@@ -12,7 +12,7 @@ IIB_SECRET_KEY=
 IIB_SERVER_LANG=auto
 
 # This configuration parameter specifies the maximum number of database file backups for the IIB .
-IIB_DB_FILE_BACKUP_MAX=16
+IIB_DB_FILE_BACKUP_MAX=8
 
 
 # ---------------------------- ACCESS_CONTROL ----------------------------
diff --git a/scripts/iib/tool.py b/scripts/iib/tool.py
index a2e0df7..3d63524 100644
--- a/scripts/iib/tool.py
+++ b/scripts/iib/tool.py
@@ -48,7 +48,7 @@ def backup_db_file(db_file_path):
 
     if not os.path.exists(db_file_path):
         return
-    max_backup_count = int(os.environ.get('IIB_DB_FILE_BACKUP_MAX', '16'))
+    max_backup_count = int(os.environ.get('IIB_DB_FILE_BACKUP_MAX', '8'))
     if max_backup_count < 1:
         return
     backup_folder = os.path.join(cwd,'iib_db_backup')