diff --git a/app/Models/Course.php b/app/Models/Course.php
index 6821c7b0..56bb3219 100644
--- a/app/Models/Course.php
+++ b/app/Models/Course.php
@@ -462,7 +462,9 @@ class Course extends Model
             3 => '3个月',
             6 => '6个月',
             12 => '12个月',
+            24 => '24个月',
             36 => '36个月',
+            48 => '48个月',
         ];
     }
 
@@ -470,11 +472,11 @@ class Course extends Model
     {
         return [
             0 => '0天',
+            1 => '1天',
+            3 => '3天',
             7 => '7天',
             14 => '14天',
             30 => '30天',
-            90 => '90天',
-            180 => '180天',
         ];
     }