diff --git a/openwrt/vigir-1-firmware-upgrade.sh b/openwrt/vigir-1-firmware-upgrade.sh
index f967fbd..939e437 100755
--- a/openwrt/vigir-1-firmware-upgrade.sh
+++ b/openwrt/vigir-1-firmware-upgrade.sh
@@ -12,7 +12,7 @@ set -x
 vigir_ip=$1; shift
 
 # openwrt
-version=22.03.3
+version=23.05.2
 filename=openwrt-${version}-ramips-mt7621-zbtlink_zbt-wg3526-16m-squashfs-sysupgrade.bin
 # don't care about other/old known_host entries
 ssh-keygen  -R ${vigir_ip}