diff --git a/vpnsetup_alpine.sh b/vpnsetup_alpine.sh
index a3fdf58..ae7e8c7 100755
--- a/vpnsetup_alpine.sh
+++ b/vpnsetup_alpine.sh
@@ -185,7 +185,7 @@ get_ikev2_script() {
 }
 
 check_libreswan() {
-  SWAN_VER=4.5
+  SWAN_VER=4.6
   ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
   swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
   [ "$swan_ver_old" = "$SWAN_VER" ]
diff --git a/vpnsetup_amzn.sh b/vpnsetup_amzn.sh
index 875fa7d..dc18d53 100755
--- a/vpnsetup_amzn.sh
+++ b/vpnsetup_amzn.sh
@@ -185,7 +185,7 @@ get_ikev2_script() {
 }
 
 check_libreswan() {
-  SWAN_VER=4.5
+  SWAN_VER=4.6
   ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
   swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
   [ "$swan_ver_old" = "$SWAN_VER" ]
diff --git a/vpnsetup_centos.sh b/vpnsetup_centos.sh
index eb7b637..0a2113c 100755
--- a/vpnsetup_centos.sh
+++ b/vpnsetup_centos.sh
@@ -240,7 +240,7 @@ get_ikev2_script() {
 }
 
 check_libreswan() {
-  SWAN_VER=4.5
+  SWAN_VER=4.6
   ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
   swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
   [ "$swan_ver_old" = "$SWAN_VER" ]
diff --git a/vpnsetup_ubuntu.sh b/vpnsetup_ubuntu.sh
index 49c5c04..41b0ac7 100755
--- a/vpnsetup_ubuntu.sh
+++ b/vpnsetup_ubuntu.sh
@@ -223,7 +223,7 @@ get_ikev2_script() {
 }
 
 check_libreswan() {
-  SWAN_VER=4.5
+  SWAN_VER=4.6
   ipsec_ver=$(/usr/local/sbin/ipsec --version 2>/dev/null)
   swan_ver_old=$(printf '%s' "$ipsec_ver" | sed -e 's/.*Libreswan U\?//' -e 's/\( (\|\/K\).*//')
   [ "$swan_ver_old" = "$SWAN_VER" ]