diff --git a/internal/db/migrations/migration.go b/internal/db/migrations/migration.go
index e4c0b13..fac2eb6 100644
--- a/internal/db/migrations/migration.go
+++ b/internal/db/migrations/migration.go
@@ -6,12 +6,5 @@ import (
 
 func MigrateDatabase(db *gorm.DB) error {
 	// v1.0.13 修复请求日志数据
-	if err := V1_0_13_FixRequestLogs(db); err != nil {
-		return err
-	}
-	// v1.0.16 增加 key_value 字段长度
-	if err := V1_0_16_IncreaseKeyValueLength(db); err != nil {
-		return err
-	}
-	return nil
+	return V1_0_13_FixRequestLogs(db)
 }
diff --git a/internal/db/migrations/v1.0.16_increase_key_value_length.go b/internal/db/migrations/v1.0.16_increase_key_value_length.go
deleted file mode 100644
index 0c232c1..0000000
--- a/internal/db/migrations/v1.0.16_increase_key_value_length.go
+++ /dev/null
@@ -1,47 +0,0 @@
-package db
-
-import (
-	"fmt"
-
-	"gorm.io/gorm"
-)
-
-// V1_0_16_IncreaseKeyValueLength migrates the key_value column length.
-func V1_0_16_IncreaseKeyValueLength(db *gorm.DB) error {
-	if err := alterColumnType(db, "api_keys", "key_value", "varchar(1024)"); err != nil {
-		return fmt.Errorf("failed to migrate api_keys table: %w", err)
-	}
-
-	if err := alterColumnType(db, "request_logs", "key_value", "varchar(1024)"); err != nil {
-		return fmt.Errorf("failed to migrate request_logs table: %w", err)
-	}
-
-	return nil
-}
-
-func alterColumnType(db *gorm.DB, tableName, columnName, newType string) error {
-	var currentType string
-	switch db.Dialector.Name() {
-	case "sqlite":
-		return nil
-	case "mysql":
-		err := db.Raw("SELECT COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ? AND COLUMN_NAME = ?",
-			db.Migrator().CurrentDatabase(), tableName, columnName).Scan(&currentType).Error
-		if err != nil {
-			return err
-		}
-		if currentType == newType {
-			return nil
-		}
-		return db.Exec(fmt.Sprintf("ALTER TABLE %s MODIFY COLUMN %s %s", tableName, columnName, newType)).Error
-	case "postgres":
-		err := db.Raw("SELECT data_type FROM information_schema.columns WHERE table_name = ? AND column_name = ?",
-			tableName, columnName).Scan(&currentType).Error
-		if err != nil {
-			return err
-		}
-		return db.Exec(fmt.Sprintf("ALTER TABLE %s ALTER COLUMN %s TYPE %s", tableName, columnName, newType)).Error
-	default:
-		return nil
-	}
-}