Update version number

z-song · z-song · commit 15589facf31c · 2018-10-18T00:00:07.000+08:00
diff --git a/src/Admin.php b/src/Admin.php
@@ -24,7 +24,7 @@ class Admin
      *
      * @var string
      */
-    const VERSION = '1.6.3';
+    const VERSION = '1.6.4';
 
     /**
      * @var Navbar
