diff --git a/Mesa-drivers.changes b/Mesa-drivers.changes
index f810650..fd3043e 100644
--- a/Mesa-drivers.changes
+++ b/Mesa-drivers.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Tue May 22 08:44:11 UTC 2018 - msrb@suse.com
+
+- Fix python3-Mako dependency on <= Leap 42.3.
+- Temporarily replace mesa-18.1.0.tar.xz.sig with
+  mesa-18.1.0.tar.xz.sha1sum. The sig file uses EDDSA which is not
+  supported by gpg in OBS at the moment.
+
 -------------------------------------------------------------------
 Sat May 19 17:45:35 UTC 2018 - mimi.vx@gmail.com
 
diff --git a/Mesa-drivers.spec b/Mesa-drivers.spec
index 3576f62..b40f167 100644
--- a/Mesa-drivers.spec
+++ b/Mesa-drivers.spec
@@ -124,7 +124,8 @@ Url:            http://www.mesa3d.org
 # Source:         ftp://ftp.freedesktop.org/pub/mesa/%%{version}/%%{_name_archive}-%%{_version}.tar.xz
 Source:         ftp://ftp.freedesktop.org/pub/mesa/%{_name_archive}-%{_version}.tar.xz
 # Source1:        ftp://ftp.freedesktop.org/pub/mesa/%%{version}/%%{_name_archive}-%%{_version}.tar.xz.sig
-Source1:        ftp://ftp.freedesktop.org/pub/mesa/%{_name_archive}-%{_version}.tar.xz.sig
+# Source1:        ftp://ftp.freedesktop.org/pub/mesa/%{_name_archive}-%{_version}.tar.xz.sig
+Source1:        %{_name_archive}-%{_version}.tar.xz.sha1sum
 Source2:        baselibs.conf
 Source3:        README.updates
 Source4:        manual-pages.tar.bz2
@@ -150,6 +151,8 @@ BuildRequires:  pkgconfig
 BuildRequires:  python3-base
 %if 0%{?suse_version} > 1320
 BuildRequires:  python3-mako
+%else
+BuildRequires:  python3-Mako
 %endif
 BuildRequires:  python3-xml
 BuildRequires:  pkgconfig(dri2proto)
diff --git a/Mesa.changes b/Mesa.changes
index f810650..fd3043e 100644
--- a/Mesa.changes
+++ b/Mesa.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Tue May 22 08:44:11 UTC 2018 - msrb@suse.com
+
+- Fix python3-Mako dependency on <= Leap 42.3.
+- Temporarily replace mesa-18.1.0.tar.xz.sig with
+  mesa-18.1.0.tar.xz.sha1sum. The sig file uses EDDSA which is not
+  supported by gpg in OBS at the moment.
+
 -------------------------------------------------------------------
 Sat May 19 17:45:35 UTC 2018 - mimi.vx@gmail.com
 
diff --git a/Mesa.spec b/Mesa.spec
index acce519..3b98b6e 100644
--- a/Mesa.spec
+++ b/Mesa.spec
@@ -123,7 +123,8 @@ Url:            http://www.mesa3d.org
 # Source:         ftp://ftp.freedesktop.org/pub/mesa/%%{version}/%%{_name_archive}-%%{_version}.tar.xz
 Source:         ftp://ftp.freedesktop.org/pub/mesa/%{_name_archive}-%{_version}.tar.xz
 # Source1:        ftp://ftp.freedesktop.org/pub/mesa/%%{version}/%%{_name_archive}-%%{_version}.tar.xz.sig
-Source1:        ftp://ftp.freedesktop.org/pub/mesa/%{_name_archive}-%{_version}.tar.xz.sig
+# Source1:        ftp://ftp.freedesktop.org/pub/mesa/%{_name_archive}-%{_version}.tar.xz.sig
+Source1:        %{_name_archive}-%{_version}.tar.xz.sha1sum
 Source2:        baselibs.conf
 Source3:        README.updates
 Source4:        manual-pages.tar.bz2
@@ -149,6 +150,8 @@ BuildRequires:  pkgconfig
 BuildRequires:  python3-base
 %if 0%{?suse_version} > 1320
 BuildRequires:  python3-mako
+%else
+BuildRequires:  python3-Mako
 %endif
 BuildRequires:  python3-xml
 BuildRequires:  pkgconfig(dri2proto)
diff --git a/mesa-18.1.0.tar.xz.sha1sum b/mesa-18.1.0.tar.xz.sha1sum
new file mode 100644
index 0000000..493a272
--- /dev/null
+++ b/mesa-18.1.0.tar.xz.sha1sum
@@ -0,0 +1 @@
+3da4b5f4ae3705c017a8f988f1304be45eed875f  mesa-18.1.0.tar.xz
diff --git a/mesa-18.1.0.tar.xz.sig b/mesa-18.1.0.tar.xz.sig
deleted file mode 100644
index 3b0814d..0000000
Binary files a/mesa-18.1.0.tar.xz.sig and /dev/null differ