diff --git a/extras/vpnupgrade_alpine.sh b/extras/vpnupgrade_alpine.sh
index ded221a..c6d88b9 100755
--- a/extras/vpnupgrade_alpine.sh
+++ b/extras/vpnupgrade_alpine.sh
@@ -69,7 +69,7 @@ EOF
 }
 
 get_swan_ver() {
-  swan_ver_cur=5.0
+  swan_ver_cur=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/upg-v1-$os_type-$os_ver-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)
diff --git a/extras/vpnupgrade_amzn.sh b/extras/vpnupgrade_amzn.sh
index eec8969..441abfd 100755
--- a/extras/vpnupgrade_amzn.sh
+++ b/extras/vpnupgrade_amzn.sh
@@ -52,7 +52,7 @@ EOF
 }
 
 get_swan_ver() {
-  swan_ver_cur=5.0
+  swan_ver_cur=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/upg-v1-amzn-2-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)
diff --git a/extras/vpnupgrade_centos.sh b/extras/vpnupgrade_centos.sh
index e724d65..76d0813 100755
--- a/extras/vpnupgrade_centos.sh
+++ b/extras/vpnupgrade_centos.sh
@@ -86,7 +86,7 @@ EOF
 }
 
 get_swan_ver() {
-  swan_ver_cur=5.0
+  swan_ver_cur=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/upg-v1-$os_type-$os_ver-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)
diff --git a/extras/vpnupgrade_ubuntu.sh b/extras/vpnupgrade_ubuntu.sh
index a053a90..90cff3c 100755
--- a/extras/vpnupgrade_ubuntu.sh
+++ b/extras/vpnupgrade_ubuntu.sh
@@ -80,7 +80,7 @@ EOF
 }
 
 get_swan_ver() {
-  swan_ver_cur=5.0
+  swan_ver_cur=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/upg-v1-$os_type-$os_ver-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)