diff --git a/openup b/openup
index ff7d955..c47884c 100755
--- a/openup
+++ b/openup
@@ -268,6 +268,17 @@ do_i_need_to_reboot() {
 	fi
 }
 
+patch_syspatch() {
+	pr_err
+	pr_err "Patching syspatch(8) to use syspatches signed by MTier."
+	pr_err
+	cp /usr/sbin/syspatch /usr/sbin/syspatch.pre-mtier
+	sed -i \
+		"s,openbsd-\${_OSrev}-syspatch.pub,mtier-\${_OSrev}-pkg.pub,g; \
+		s,\${_MIRROR}/syspatch,https://stable.mtier.org/syspatch,g" \
+		/usr/sbin/syspatch
+}
+
 trap "bye_bye" 1 2 3 13 15
 
 if [ -f /etc/openup.conf ]; then
@@ -283,7 +294,7 @@ fi
 set -A _REL -- $(sysctl -n kern.version | sed 's/^OpenBSD \([0-9]\.[0-9]\)\([^ ]*\).*/\1 \2/;q')
 _REL_INT="$(echo ${_REL[0]} | tr -d '.')"
 _OPENUP_MINREL=60
-_OPENUP_VERSION=31
+_OPENUP_VERSION=32
 if [ -n "${_REL[1]}" -a "${_REL[1]}" != "-stable" ]; then _badrel=1; fi
 if [ "${_REL_INT}" -lt "${_OPENUP_MINREL}" ]; then _badrel=1; fi
 if [ -n "${_badrel}" ]; then
@@ -338,6 +349,17 @@ fi
 
 check_openupd
 
+if [ -z "${nosyspatch}" -a -e /usr/sbin/syspatch ]; then
+	_sum=$(sha256 -q /usr/sbin/syspatch)
+	case "${_sum}"
+	in
+		# 6.1 syspatch
+		b8b9c4bec128884498b5c3e77a350f42079f7987ef862a1ec452f489403dfbe6)
+			patch_syspatch
+			;;
+	esac
+fi
+
 if [ "${checkrun}" ]; then
 	if [ "${_REL_INT}" -ge 61 -a -z "${nosyspatch}" ]; then
 		check_syspatches