diff --git a/adm/config_form_update.php b/adm/config_form_update.php
index f8ebc22fa..8f16f8842 100644
--- a/adm/config_form_update.php
+++ b/adm/config_form_update.php
@@ -32,7 +32,7 @@ $check_keys = array('cf_lg_mid', 'cf_lg_mert_key', 'cf_cert_kcb_cd', 'cf_cert_kc
 
 foreach( $check_keys as $key ){
     if ( isset($_POST[$key]) && $_POST[$key] ){
-        $_POST[$key] = preg_replace('/[^a-z0-9_\-]/i', '', $_POST[$key]);
+        $_POST[$key] = preg_replace('/[^a-z0-9_\-\.]/i', '', $_POST[$key]);
     }
 }
 
diff --git a/config.php b/config.php
index 121194b4d..c1aa2534b 100644
--- a/config.php
+++ b/config.php
@@ -5,8 +5,8 @@
 ********************/
 
 define('G5_VERSION', '그누보드5');
-define('G5_GNUBOARD_VER', '5.3.2.9');
-define('G5_YOUNGCART_VER', '5.3.2.9');
+define('G5_GNUBOARD_VER', '5.3.2.9.1');
+define('G5_YOUNGCART_VER', '5.3.2.9.1');
 
 // 이 상수가 정의되지 않으면 각각의 개별 페이지는 별도로 실행될 수 없음
 define('_GNUBOARD_', true);