diff --git a/grub2.spec b/grub2.spec
index bddf7bb..81f875b 100644
--- a/grub2.spec
+++ b/grub2.spec
@@ -41,7 +41,7 @@
 Name:           grub2
 Epoch:          1
 Version:        2.00
-Release:        22%{?dist}
+Release:        23%{?dist}
 Summary:        Bootloader with support for Linux, Multiboot and more
 
 Group:          System Environment/Base
@@ -564,7 +564,7 @@ Requires(pre):  dracut
 Requires(post): dracut
 
 ExcludeArch:	s390 s390x %{arm}
-Obsoletes:	grub2 <= 2.00-20%{?dist}
+Obsoletes:	grub2 <= 1:2.00-20%{?dist}
 
 %description
 The GRand Unified Bootloader (GRUB) is a highly configurable and customizable
@@ -577,7 +577,7 @@ provides support for PC BIOS systems.
 Summary:	GRUB for EFI systems.
 Group:		System Environment/Base
 Requires:	%{name}-tools = %{epoch}:%{version}-%{release}
-Obsoletes:	grub2-efi <= 2.00-20%{?dist}
+Obsoletes:	grub2-efi <= 1:2.00-20%{?dist}
 
 %description efi
 The GRand Unified Bootloader (GRUB) is a highly configurable and customizable
@@ -601,8 +601,8 @@ provides tools for support of all platforms.
 Summary:	An example theme for GRUB.
 Group:		System Environment/Base
 Requires:	system-logos
-Obsoletes:	grub2 <= 2.00-20%{?dist}
-Obsoletes:	grub2-efi <= 2.00-20%{?dist}
+Obsoletes:	grub2 <= 1:2.00-20%{?dist}
+Obsoletes:	grub2-efi <= 1:2.00-20%{?dist}
 
 %description starfield-theme
 The GRand Unified Bootloader (GRUB) is a highly configurable and customizable
@@ -923,6 +923,9 @@ fi
 %{_datarootdir}/grub/themes/
 
 %changelog
+* Tue Jul 02 2013 Dennis Gilmore <dennis@ausil.us> - 2.00-23
+- add epoch to obsoletes
+
 * Fri Jun 21 2013 Peter Jones <pjones@redhat.com> - 2.00-22
 - Fix linewrapping in edit menu.
   Resolves: rhbz #976643