diff --git a/openwrt/viwib-1-black-firmware-upgrade.sh b/openwrt/viwib-1-black-firmware-upgrade.sh
index 4f3afac..9a1479d 100755
--- a/openwrt/viwib-1-black-firmware-upgrade.sh
+++ b/openwrt/viwib-1-black-firmware-upgrade.sh
@@ -13,7 +13,7 @@ set -x
 viwib_ip=$1; shift
 
 # openwrt
-version=22.03.5
+version=23.05.3
 filename=openwrt-${version}-ath79-nand-glinet_gl-ar300m-nor-squashfs-sysupgrade.bin
 url=https://downloads.openwrt.org/releases/${version}/targets/ath79/nand