diff --git a/natflow/Makefile b/natflow/Makefile
index 1212fafda..e33f56488 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:=20250508
+PKG_VERSION:=20250509
 
 PKG_SOURCE_URL:=https://codeload.github.com/ptpt52/natflow/tar.gz/$(PKG_VERSION)?
-PKG_HASH:=3379bc94881921ccbec11b1ad127defe5e5814fd36c1e44ca69663b6b5d1d2f8
+PKG_HASH:=2a6e4ac2b23285835e5a56e1839c47d2a29c8ea480917b4ee3a241c6f04a2013
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 
 PKG_MAINTAINER:=Chen Minqiang <ptpt52@gmail.com>