diff --git a/.gitignore b/.gitignore
index a8d5ba9..6532930 100644
--- a/.gitignore
+++ b/.gitignore
@@ -116,3 +116,4 @@
 /lorax-27.10.tar.gz
 /lorax-27.11.tar.gz
 /lorax-28.0.tar.gz
+/lorax-28.1.tar.gz
diff --git a/lorax.spec b/lorax.spec
index 55b9509..f778445 100644
--- a/lorax.spec
+++ b/lorax.spec
@@ -3,7 +3,7 @@
 %define debug_package %{nil}
 
 Name:           lorax
-Version:        28.0
+Version:        28.1
 Release:        1%{?dist}
 Summary:        Tool for creating the anaconda install images
 
@@ -153,6 +153,9 @@ make DESTDIR=$RPM_BUILD_ROOT mandir=%{_mandir} install
 
 
 %changelog
+* Thu Oct 19 2017 Brian C. Lane <bcl@redhat.com> 28.1-1
+- Use bytes when writing strings in mk-s390-cdboot (#1504026) (bcl@redhat.com)
+
 * Tue Oct 17 2017 Brian C. Lane <bcl@redhat.com> 28.0-1
 - Add make test target and update .gitignore (atodorov@redhat.com)
 - Add first unit test so we can start collecting coverage (atodorov@redhat.com)
diff --git a/sources b/sources
index fd1160d..f8253ef 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (lorax-28.0.tar.gz) = 9bfff6e5a56c484e4f78e54cf06234c540c1860766e101768544fce815fb44c1875c87f4c536d3a0e81542b479ee7841b21d65e81092d22f911cddf48be207d8
+SHA512 (lorax-28.1.tar.gz) = 781d5ba27c1b67b8f02123dcdd92786904961cb7a4625baf7bbb1d12088a70028f1034468d5418d407a21ddc4b4076a08dabf6a78335a931394d4e7aeb75c47d