diff --git a/initialize/migrate/database/02153_user_subscribe_speed_limit.down.sql b/initialize/migrate/database/02153_user_subscribe_speed_limit.down.sql
index 97891f8..d46dfea 100644
--- a/initialize/migrate/database/02153_user_subscribe_speed_limit.down.sql
+++ b/initialize/migrate/database/02153_user_subscribe_speed_limit.down.sql
@@ -1,3 +1,35 @@
-ALTER TABLE `user_subscribe`
-  DROP COLUMN IF EXISTS `speed_limit`,
-  DROP COLUMN IF EXISTS `traffic_limit`;
+SET @traffic_limit_exists = (
+  SELECT COUNT(*)
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'user_subscribe'
+    AND COLUMN_NAME = 'traffic_limit'
+);
+
+SET @traffic_limit_sql = IF(
+  @traffic_limit_exists = 1,
+  'ALTER TABLE `user_subscribe` DROP COLUMN `traffic_limit`',
+  'SELECT 1'
+);
+
+PREPARE traffic_limit_stmt FROM @traffic_limit_sql;
+EXECUTE traffic_limit_stmt;
+DEALLOCATE PREPARE traffic_limit_stmt;
+
+SET @speed_limit_exists = (
+  SELECT COUNT(*)
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'user_subscribe'
+    AND COLUMN_NAME = 'speed_limit'
+);
+
+SET @speed_limit_sql = IF(
+  @speed_limit_exists = 1,
+  'ALTER TABLE `user_subscribe` DROP COLUMN `speed_limit`',
+  'SELECT 1'
+);
+
+PREPARE speed_limit_stmt FROM @speed_limit_sql;
+EXECUTE speed_limit_stmt;
+DEALLOCATE PREPARE speed_limit_stmt;
diff --git a/initialize/migrate/database/02153_user_subscribe_speed_limit.up.sql b/initialize/migrate/database/02153_user_subscribe_speed_limit.up.sql
index ae207a8..f7b4673 100644
--- a/initialize/migrate/database/02153_user_subscribe_speed_limit.up.sql
+++ b/initialize/migrate/database/02153_user_subscribe_speed_limit.up.sql
@@ -1,3 +1,35 @@
-ALTER TABLE `user_subscribe`
-  ADD COLUMN IF NOT EXISTS `speed_limit` BIGINT NOT NULL DEFAULT 0 COMMENT 'User-level speed limit override (Mbps), 0 uses plan-level',
-  ADD COLUMN IF NOT EXISTS `traffic_limit` TEXT DEFAULT NULL COMMENT 'User-level traffic limit override (JSON), NULL uses plan-level';
+SET @speed_limit_exists = (
+  SELECT COUNT(*)
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'user_subscribe'
+    AND COLUMN_NAME = 'speed_limit'
+);
+
+SET @speed_limit_sql = IF(
+  @speed_limit_exists = 0,
+  'ALTER TABLE `user_subscribe` ADD COLUMN `speed_limit` BIGINT NOT NULL DEFAULT 0 COMMENT ''User-level speed limit override (Mbps), 0 uses plan-level'' AFTER `upload`',
+  'SELECT 1'
+);
+
+PREPARE speed_limit_stmt FROM @speed_limit_sql;
+EXECUTE speed_limit_stmt;
+DEALLOCATE PREPARE speed_limit_stmt;
+
+SET @traffic_limit_exists = (
+  SELECT COUNT(*)
+  FROM INFORMATION_SCHEMA.COLUMNS
+  WHERE TABLE_SCHEMA = DATABASE()
+    AND TABLE_NAME = 'user_subscribe'
+    AND COLUMN_NAME = 'traffic_limit'
+);
+
+SET @traffic_limit_sql = IF(
+  @traffic_limit_exists = 0,
+  'ALTER TABLE `user_subscribe` ADD COLUMN `traffic_limit` TEXT DEFAULT NULL COMMENT ''User-level traffic limit override (JSON), NULL uses plan-level'' AFTER `speed_limit`',
+  'SELECT 1'
+);
+
+PREPARE traffic_limit_stmt FROM @traffic_limit_sql;
+EXECUTE traffic_limit_stmt;
+DEALLOCATE PREPARE traffic_limit_stmt;