diff --git a/model/option.go b/model/option.go
index 871f73a2..e0a3048d 100644
--- a/model/option.go
+++ b/model/option.go
@@ -581,6 +581,8 @@ func handleConfigUpdate(key, value string) bool {
 	} else if configName == "billing_setting" {
 		InvalidatePricingCache()
 		ratio_setting.InvalidateExposedDataCache()
+	} else if configName == "theme" {
+		system_setting.UpdateAndSyncTheme()
 	}
 
 	return true // 已处理