diff --git a/natflow/Makefile b/natflow/Makefile
index 2e20f3841..97ea47dc8 100644
--- a/natflow/Makefile
+++ b/natflow/Makefile
@@ -9,10 +9,10 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=natflow
-PKG_VERSION:=20250320
+PKG_VERSION:=20250501
 
 PKG_SOURCE_URL:=https://codeload.github.com/ptpt52/natflow/tar.gz/$(PKG_VERSION)?
-PKG_HASH:=809efa300b171d589497c46f4ef0b2790da311baa2c53a44198ecdfc62b6e18b
+PKG_HASH:=6bdc5fb8b982cb4e014858d74bc9cd09884c9ffea95425a90cafa3111715409c
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 
 PKG_MAINTAINER:=Chen Minqiang <ptpt52@gmail.com>