diff --git a/extras/ikev2setup.sh b/extras/ikev2setup.sh
index 49ce593..9367104 100755
--- a/extras/ikev2setup.sh
+++ b/extras/ikev2setup.sh
@@ -293,7 +293,7 @@ check_swan_ver() {
     swan_ver_url="https://dl.ls20.com/v1/docker/$os_type/$os_arch/swanverikev2?ver=$swan_ver&auto=$use_defaults"
   fi
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
 }
 
 show_update_info() {
diff --git a/extras/vpnupgrade_alpine.sh b/extras/vpnupgrade_alpine.sh
index 601affc..e17a478 100755
--- a/extras/vpnupgrade_alpine.sh
+++ b/extras/vpnupgrade_alpine.sh
@@ -278,7 +278,7 @@ check_swan_ver() {
   swan_ver_cur=4.5
   swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ "$swan_ver_cur" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
diff --git a/extras/vpnupgrade_amzn.sh b/extras/vpnupgrade_amzn.sh
index 803d5e1..c02f26e 100755
--- a/extras/vpnupgrade_amzn.sh
+++ b/extras/vpnupgrade_amzn.sh
@@ -261,7 +261,7 @@ check_swan_ver() {
   swan_ver_cur=4.5
   swan_ver_url="https://dl.ls20.com/v1/amzn/2/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ "$swan_ver_cur" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
diff --git a/extras/vpnupgrade_centos.sh b/extras/vpnupgrade_centos.sh
index 0e3af7f..dc6ee9f 100755
--- a/extras/vpnupgrade_centos.sh
+++ b/extras/vpnupgrade_centos.sh
@@ -297,7 +297,7 @@ check_swan_ver() {
   swan_ver_cur=4.5
   swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ "$swan_ver_cur" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
diff --git a/extras/vpnupgrade_ubuntu.sh b/extras/vpnupgrade_ubuntu.sh
index 5abab5c..55ca894 100755
--- a/extras/vpnupgrade_ubuntu.sh
+++ b/extras/vpnupgrade_ubuntu.sh
@@ -304,7 +304,7 @@ check_swan_ver() {
   swan_ver_cur=4.5
   swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanverupg?arch=$os_arch&ver1=$swan_ver_old&ver2=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ "$swan_ver_cur" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$swan_ver_cur" "$swan_ver_latest" | sort -C -V; then
diff --git a/vpnsetup_alpine.sh b/vpnsetup_alpine.sh
index af1eb52..1105b89 100755
--- a/vpnsetup_alpine.sh
+++ b/vpnsetup_alpine.sh
@@ -506,7 +506,7 @@ EOF
 check_swan_ver() {
   swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanver?arch=$os_arch&ver=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ -n "$SWAN_VER" ] && [ "$SWAN_VER" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$SWAN_VER" "$swan_ver_latest" | sort -C -V; then
diff --git a/vpnsetup_amzn.sh b/vpnsetup_amzn.sh
index a733171..875fa7d 100755
--- a/vpnsetup_amzn.sh
+++ b/vpnsetup_amzn.sh
@@ -513,7 +513,7 @@ EOF
 check_swan_ver() {
   swan_ver_url="https://dl.ls20.com/v1/amzn/2/swanver?arch=$os_arch&ver=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ -n "$SWAN_VER" ] && [ "$SWAN_VER" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$SWAN_VER" "$swan_ver_latest" | sort -C -V; then
diff --git a/vpnsetup_centos.sh b/vpnsetup_centos.sh
index 450673a..eb7b637 100755
--- a/vpnsetup_centos.sh
+++ b/vpnsetup_centos.sh
@@ -609,7 +609,7 @@ EOF
 check_swan_ver() {
   swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanver?arch=$os_arch&ver=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ -n "$SWAN_VER" ] && [ "$SWAN_VER" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$SWAN_VER" "$swan_ver_latest" | sort -C -V; then
diff --git a/vpnsetup_ubuntu.sh b/vpnsetup_ubuntu.sh
index d030a49..49c5c04 100755
--- a/vpnsetup_ubuntu.sh
+++ b/vpnsetup_ubuntu.sh
@@ -597,7 +597,7 @@ EOF
 check_swan_ver() {
   swan_ver_url="https://dl.ls20.com/v1/$os_type/$os_ver/swanver?arch=$os_arch&ver=$SWAN_VER"
   [ "$1" != "0" ] && swan_ver_url="$swan_ver_url&e=$2"
-  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url")
+  swan_ver_latest=$(wget -t 3 -T 15 -qO- "$swan_ver_url" | head -n 1)
   if printf '%s' "$swan_ver_latest" | grep -Eq '^([3-9]|[1-9][0-9]{1,2})(\.([0-9]|[1-9][0-9]{1,2})){1,2}$' \
     && [ "$1" = "0" ] && [ -n "$SWAN_VER" ] && [ "$SWAN_VER" != "$swan_ver_latest" ] \
     && printf '%s\n%s' "$SWAN_VER" "$swan_ver_latest" | sort -C -V; then