diff --git a/install.sh b/install.sh
index 36d894b..7beb704 100644
--- a/install.sh
+++ b/install.sh
@@ -1098,9 +1098,9 @@ checkDNSIP() {
     local domain=$1
     local dnsIP=
     local type=4
-    dnsIP=$(dig @1.1.1.1 +time=2 +short "${domain}")
+    dnsIP=$(dig @1.1.1.1 +time=2 +short "${domain}" | grep -E "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$")
     if [[ -z "${dnsIP}" ]]; then
-        dnsIP=$(dig @8.8.8.8 +time=2 +short "${domain}")
+        dnsIP=$(dig @8.8.8.8 +time=2 +short "${domain}" | grep -E "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$")
     fi
     if echo "${dnsIP}" | grep -q "timed out" || [[ -z "${dnsIP}" ]]; then
         echo
@@ -8470,7 +8470,7 @@ menu() {
     cd "$HOME" || exit
     echoContent red "\n=============================================================="
     echoContent green "作者：mack-a"
-    echoContent green "当前版本：v2.11.22"
+    echoContent green "当前版本：v2.11.23"
     echoContent green "Github：https://github.com/mack-a/v2ray-agent"
     echoContent green "描述：八合一共存脚本\c"
     showInstallStatus