diff --git a/application/migrations/100_update_cat_table.php b/application/migrations/100_update_cat_table.php
index 1b7c45ef..189c1c6c 100644
--- a/application/migrations/100_update_cat_table.php
+++ b/application/migrations/100_update_cat_table.php
@@ -18,10 +18,10 @@ class Migration_update_cat_table extends CI_Migration {
                 $this->dbforge->drop_column('cat', 'uplink_mode');
             }
             if ($this->db->field_exists('downlink_freq', 'cat')) {
-                $this->db->query("ALTER TABLE cat RENAME COLUMN downlink_freq TO frequency_rx");
+                $this->db->query("ALTER TABLE cat CHANGE COLUMN downlink_freq TO frequency_rx");
             }
             if ($this->db->field_exists('downlink_mode', 'cat')) {
-                $this->db->query("ALTER TABLE cat RENAME COLUMN downlink_mode TO mode_rx");
+                $this->db->query("ALTER TABLE cat CHANGE COLUMN downlink_mode TO mode_rx");
             }
         }
     }
@@ -30,10 +30,10 @@ class Migration_update_cat_table extends CI_Migration {
     {
         if ($this->db->table_exists('cat')) {
             if ($this->db->field_exists('frequency_rx', 'cat')) {
-                $this->db->query("ALTER TABLE cat RENAME COLUMN frequency_rx TO downlink_freq");
+                $this->db->query("ALTER TABLE cat CHANGE COLUMN frequency_rx TO downlink_freq");
             }
             if ($this->db->field_exists('mode_rx', 'cat')) {
-                $this->db->query("ALTER TABLE cat RENAME COLUMN mode_rx TO downlink_mode");
+                $this->db->query("ALTER TABLE cat CHANGE COLUMN mode_rx TO downlink_mode");
             }
             if (!$this->db->field_exists('uplink_freq', 'cat')) {
                 $fields = array(