diff --git a/vm/mikrotik-routeros.sh b/vm/mikrotik-routeros.sh
index 6f37776a..15e702f5 100644
--- a/vm/mikrotik-routeros.sh
+++ b/vm/mikrotik-routeros.sh
@@ -62,7 +62,7 @@ function cleanup() {
 }
 TEMP_DIR=$(mktemp -d)
 pushd $TEMP_DIR >/dev/null
- if ! pveversion | grep -Eq "pve-manager/(7.4-[1][3-9]|8.1.[1-9])"; then
+ if ! pveversion | grep -Eq "pve-manager/(7\.4-(1[3-8])|8\.[1-2])"; then
   echo "⚠ This version of Proxmox Virtual Environment is not supported"
   echo -e "Requires PVE7 Version 7.4-13 or later, or PVE8 Version 8.1.1 or later."
   echo "Exiting..."