diff --git a/src/Bootstrap/CoreBean.php b/src/Bootstrap/CoreBean.php
index 8c94bc79..6120387a 100644
--- a/src/Bootstrap/CoreBean.php
+++ b/src/Bootstrap/CoreBean.php
@@ -51,8 +51,8 @@ public function beans()
             'lineFormatter'    => [
                 'class'      => LineFormatter::class,
                 'format'     => '%datetime% [%level_name%] [%channel%] [logid:%logid%] [spanid:%spanid%] %messages%',
-                'dateFormat' => 'Y/m/d H:i:s',
+                'dateFormat' => 'Y-m-d H:i:s',
             ],
         ];
     }
-}
\ No newline at end of file
+}