diff --git a/libgudev.spec b/libgudev.spec
index 49c5276..849ab79 100644
--- a/libgudev.spec
+++ b/libgudev.spec
@@ -1,15 +1,15 @@
 Name:           libgudev
 Version:        232
-Release:        5
+Release:        6
 Summary:        Library that provides GObject bindings for libudev
 License:        LGPLv2+
 URL:            https://wiki.gnome.org/Projects/libgudev
 Source0:        https://download.gnome.org/sources/libgudev/%{version}/%{name}-%{version}.tar.xz
 Patch1:      fix-test-assertion-with-umockdev.patch
 
-BuildRequires:  glib2-devel umockdev-devel  gobject-introspection-devel pkgconfig libudev-devel gtk-doc
+BuildRequires:  glib2-devel umockdev-devel  gobject-introspection-devel pkgconfig libudev-devel gtk-doc libxslt
 Provides:       libgudev1 = %{version}-%{release}
-Obsoletes:      libgudev1
+Obsoletes:      libgudev1 < %{version}-%{release}
 
 %description
 Library provides GObject bindings for libudev. It used to be part
@@ -19,7 +19,7 @@ of udev, then merged into systemd. It's now a project on its own.
 Summary:        Include files and Header files for %{name}
 Requires:       %{name} = %{version}-%{release}
 Provides:       libgudev1-devel = %{version}-%{release}
-Obsoletes:      libgudev1-devel
+Obsoletes:      libgudev1-devel < %{version}-%{release}
 
 %description    devel
 The %{name}-devel package contains libraries and header files for
@@ -62,6 +62,12 @@ make check
 %{_datadir}/gtk-doc/html/gudev/*
 
 %changelog
+* Fri Nov 21 2019 openEuler Buildteam <buildteam@openeuler.org> - 232-6
+- Type:bugfix
+- Id:NA
+- SUG:NA
+- DESC:add the libxslt in buildrequires
+
 * Thu Sep 5 2019 openEuler Buildteam <buildteam@openeuler.org> - 232-5
 - Package init