diff --git a/backend/requirements.txt b/backend/requirements.txt
index db3e616a3..490ccdc1d 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -119,7 +119,7 @@ pgvector==0.4.2
 
 PyMySQL==1.1.2
 boto3==1.42.62
-mariadb==1.1.14
+# mariadb==1.1.14 should be added if you want to support MariaDB
 
 pymilvus==2.6.9
 qdrant-client==1.17.0