diff --git a/.gitignore b/.gitignore
index df1b168..4b81973 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,3 +51,4 @@
 /lorax-templates-rhel-9.0-24.tar.gz
 /lorax-templates-rhel-9.0-25.tar.gz
 /lorax-templates-rhel-9.0-26.tar.gz
+/lorax-templates-rhel-9.0-27.tar.gz
diff --git a/SERIAL b/SERIAL
index 6f4247a..f64f5d8 100644
--- a/SERIAL
+++ b/SERIAL
@@ -1 +1 @@
-26
+27
diff --git a/lorax-templates-rhel.spec b/lorax-templates-rhel.spec
index 25dcac1..57b461d 100644
--- a/lorax-templates-rhel.spec
+++ b/lorax-templates-rhel.spec
@@ -1,12 +1,12 @@
 Name:           lorax-templates-rhel
 Version:        9.0
-Release:        26%{?dist}
+Release:        27%{?dist}
 Summary:        RHEL8 build templates for lorax and livemedia-creator
 
 License:        GPLv2+
 URL:            https://github.com/weldr/lorax
 BuildArch:      noarch
-Source0:        lorax-templates-rhel-9.0-26.tar.gz
+Source0:        lorax-templates-rhel-9.0-27.tar.gz
 
 # Required for the template branding support
 Requires:       lorax >= 34.9.1
@@ -34,6 +34,10 @@ cp -a 80-rhel/* $RPM_BUILD_ROOT/%{templatedir}
 %{templatedir}/*
 
 %changelog
+* Wed Oct 27 2021 Brian C. Lane <bcl@redhat.com> - 9.0-27
+- Switch to using xorrisofs instead of mkisofs (bcl)
+  Resolves: rhbz#2017134
+
 * Thu Oct 21 2021 Brian C. Lane <bcl@redhat.com> - 9.0-26
 - templates: Change nomodeset / basic graphics to use inst.text (bcl)
   Resolves: rhbz#1961092
diff --git a/sources b/sources
index b64f076..9268558 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (lorax-templates-rhel-9.0-26.tar.gz) = 82a24c47d009ab6fb67994f50f7a4e5078403026266792db81f8a23ec348ab5007fd147e075d6dba80e307e016a6fd0a87f69a057f3fcec0ec54e45317eb105c
+SHA512 (lorax-templates-rhel-9.0-27.tar.gz) = 755ad2c859ac5d098eae0cb9068870ddf7e601e79d52d7772d555570e3afd75c5d4c8e4478932fcb939de558bed3b2f6a52ecc6badceb95de6b0ecff85371aed