diff --git a/internal/bootstrap/data/setting.go b/internal/bootstrap/data/setting.go
index 8adc713d6d62..c6b771b45f3d 100644
--- a/internal/bootstrap/data/setting.go
+++ b/internal/bootstrap/data/setting.go
@@ -21,7 +21,6 @@ func initSettings() {
 	if err != nil {
 		utils.Log.Fatalf("failed get settings: %+v", err)
 	}
-
 	for i := range settings {
 		if !isActive(settings[i].Key) && settings[i].Flag != model.DEPRECATED {
 			settings[i].Flag = model.DEPRECATED
@@ -42,7 +41,7 @@ func initSettings() {
 			continue
 		}
 		// save
-		if stored != nil && item.Key != conf.VERSION {
+		if stored != nil && item.Key != conf.VERSION && stored.Value != item.DeprecatedValue {
 			item.Value = stored.Value
 		}
 		if stored == nil || *item != *stored {
@@ -129,7 +128,7 @@ func InitialSettings() []model.SettingItem {
 		// global settings
 		{Key: conf.HideFiles, Value: "/\\/README.md/i", Type: conf.TypeText, Group: model.GLOBAL},
 		{Key: "package_download", Value: "true", Type: conf.TypeBool, Group: model.GLOBAL},
-		{Key: conf.CustomizeHead, Value: `<script src="https://polyfill.io/v3/polyfill.min.js?features=String.prototype.replaceAll"></script>`, Type: conf.TypeText, Group: model.GLOBAL, Flag: model.PRIVATE},
+		{Key: conf.CustomizeHead, DeprecatedValue: `<script src="https://polyfill.io/v3/polyfill.min.js?features=String.prototype.replaceAll"></script>`, Type: conf.TypeText, Group: model.GLOBAL, Flag: model.PRIVATE},
 		{Key: conf.CustomizeBody, Type: conf.TypeText, Group: model.GLOBAL, Flag: model.PRIVATE},
 		{Key: conf.LinkExpiration, Value: "0", Type: conf.TypeNumber, Group: model.GLOBAL, Flag: model.PRIVATE},
 		{Key: conf.SignAll, Value: "true", Type: conf.TypeBool, Group: model.GLOBAL, Flag: model.PRIVATE},
diff --git a/internal/model/setting.go b/internal/model/setting.go
index 1a47cf5c062e..9ef6fdf7d783 100644
--- a/internal/model/setting.go
+++ b/internal/model/setting.go
@@ -21,13 +21,14 @@ const (
 )
 
 type SettingItem struct {
-	Key     string `json:"key" gorm:"primaryKey" binding:"required"` // unique key
-	Value   string `json:"value"`                                    // value
-	Help    string `json:"help"`                                     // help message
-	Type    string `json:"type"`                                     // string, number, bool, select
-	Options string `json:"options"`                                  // values for select
-	Group   int    `json:"group"`                                    // use to group setting in frontend
-	Flag    int    `json:"flag"`                                     // 0 = public, 1 = private, 2 = readonly, 3 = deprecated, etc.
+	Key             string `json:"key" gorm:"primaryKey" binding:"required"` // unique key
+	Value           string `json:"value"`                                    // value
+	DeprecatedValue string `json:"deprecated_value" gorm:"-:all"`            // deprecated value
+	Help            string `json:"help"`                                     // help message
+	Type            string `json:"type"`                                     // string, number, bool, select
+	Options         string `json:"options"`                                  // values for select
+	Group           int    `json:"group"`                                    // use to group setting in frontend
+	Flag            int    `json:"flag"`                                     // 0 = public, 1 = private, 2 = readonly, 3 = deprecated, etc.
 }
 
 func (s SettingItem) IsDeprecated() bool {