diff --git a/vpnsetup_alpine.sh b/vpnsetup_alpine.sh
index c7a8d4d..edba7ec 100755
--- a/vpnsetup_alpine.sh
+++ b/vpnsetup_alpine.sh
@@ -240,7 +240,7 @@ get_helper_scripts() {
 }
 
 get_swan_ver() {
-  SWAN_VER=5.0
+  SWAN_VER=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/v1-$os_type-$os_ver-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)
diff --git a/vpnsetup_amzn.sh b/vpnsetup_amzn.sh
index 5403bc0..8423517 100755
--- a/vpnsetup_amzn.sh
+++ b/vpnsetup_amzn.sh
@@ -258,7 +258,7 @@ get_helper_scripts() {
 }
 
 get_swan_ver() {
-  SWAN_VER=5.0
+  SWAN_VER=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/v1-amzn-2-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)
diff --git a/vpnsetup_centos.sh b/vpnsetup_centos.sh
index 810dae7..a6837e3 100755
--- a/vpnsetup_centos.sh
+++ b/vpnsetup_centos.sh
@@ -361,7 +361,7 @@ get_helper_scripts() {
 }
 
 get_swan_ver() {
-  SWAN_VER=5.0
+  SWAN_VER=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/v1-$os_type-$os_ver-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)
diff --git a/vpnsetup_ubuntu.sh b/vpnsetup_ubuntu.sh
index 86899cf..68a1f5a 100755
--- a/vpnsetup_ubuntu.sh
+++ b/vpnsetup_ubuntu.sh
@@ -313,7 +313,7 @@ get_helper_scripts() {
 }
 
 get_swan_ver() {
-  SWAN_VER=5.0
+  SWAN_VER=5.1
   base_url="https://github.com/hwdsl2/vpn-extras/releases/download/v1.0.0"
   swan_ver_url="$base_url/v1-$os_type-$os_ver-swanver"
   swan_ver_latest=$(wget -t 2 -T 10 -qO- "$swan_ver_url" | head -n 1)