diff --git a/rootfs/tmp/etc/bind/named.conf b/rootfs/tmp/etc/bind/named.conf
index 4cab310..8d3f227 100644
--- a/rootfs/tmp/etc/bind/named.conf
+++ b/rootfs/tmp/etc/bind/named.conf
@@ -1,10 +1,10 @@
 # default options - https://bind9.readthedocs.io/en/latest/chapter3.html
 #####################################################################
 # rndc keys
-key "dhcp-key" { algorithm hmac-sha256; secret "REPLACE_KEY_DHCP"; };
-key "rndc-key" { algorithm hmac-sha256; secret "REPLACE_KEY_RNDC"; };
-key "backup-key" { algorithm hmac-sha256; secret "MKEQ/REPLACE_KEY_BACKUP"; };
+key "dhcp-key" { algorithm hmac-sha512; secret "REPLACE_KEY_DHCP"; };
+key "rndc-key" { algorithm hmac-sha512; secret "REPLACE_KEY_RNDC"; };
 key "certbot." { algorithm hmac-sha512; secret "REPLACE_KEY_CERTBOT"; };
+key "backup-key" { algorithm hmac-sha512; secret "MKEQ/REPLACE_KEY_BACKUP"; };
 #####################################################################
 # access settings
 acl "all" { 0.0.0.0/0; ::/0; };
diff --git a/rootfs/tmp/etc/bind/rndc.key b/rootfs/tmp/etc/bind/rndc.key
index 7c06d05..21405ec 100644
--- a/rootfs/tmp/etc/bind/rndc.key
+++ b/rootfs/tmp/etc/bind/rndc.key
@@ -1 +1 @@
-key "rndc-key" { algorithm hmac-sha256; secret "REPLACE_KEY_RNDC"; };
+key "rndc-key" { algorithm hmac-sha512; secret "REPLACE_KEY_RNDC"; };
diff --git a/rootfs/usr/local/etc/docker/init.d/00-named.sh b/rootfs/usr/local/etc/docker/init.d/00-named.sh
index d5112ad..ea05d9a 100755
--- a/rootfs/usr/local/etc/docker/init.d/00-named.sh
+++ b/rootfs/usr/local/etc/docker/init.d/00-named.sh
@@ -62,7 +62,7 @@ __rndc_key() { grep -s 'key "rndc-key" ' /etc/named.conf | grep -v 'KEY_RNDC' |
 __dhcp_key() { grep -s 'key "dhcp-key" ' /etc/named.conf | grep -v 'KEY_DHCP' | sed 's|.*secret ||g;s|"||g;s|;.*||g' | grep '^' || return 1; }
 __certbot_key() { grep -s 'key "certbot" ' /etc/named.conf | grep -v 'KEY_CERTBOT' | sed 's|.*secret ||g;s|"||g;s|;.*||g' | grep '^' || return 1; }
 __backup_key() { grep -s 'key "backup-key" ' /etc/named.conf | grep -v 'KEY_BACKUP' | sed 's|.*secret ||g;s|"||g;s|;.*||g' | grep '^' || return 1; }
-__tsig_key() { tsig-keygen -a hmac-${1:-sha256} | grep 'secret' | sed 's|.*secret "||g;s|"||g;s|;||g' | grep '^' || echo 'wp/HApbthaVPjwqgp6ziLlmnkyLSNbRTehkdARBDcpI='; }
+__tsig_key() { tsig-keygen -a hmac-${1:-sha512} | grep 'secret' | sed 's|.*secret "||g;s|"||g;s|;||g' | grep '^' || echo 'I665bFnjoPMB9EmEUl5uZ+o7e4ryM02irerkCkLJiSPJJYJBvBHSXCauNn44zY2C318DSWRcCx+tf8WESYwgKQ=='; }
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 # Script to execute
 START_SCRIPT="/usr/local/etc/docker/exec/$SERVICE_NAME"