diff --git a/sg3_utils.spec b/sg3_utils.spec
index e7142bd76dc4ed04825b4d6d53383d2c5f0410ee..cc6bc399353273892de88f7ee8c41ca51f8c4813 100644
--- a/sg3_utils.spec
+++ b/sg3_utils.spec
@@ -1,6 +1,6 @@
 Name:    sg3_utils
 Version: 1.42
-Release: 10
+Release: 11
 Summary: Utilities that send SCSI commands to devices.
 License: GPL-2.0-or-later AND BSD
 URL:     http://sg.danny.cz/sg/sg3_utils.html
@@ -16,8 +16,8 @@ Patch9003: 9003-sg_inq-fix-potential-unbounded-loop-in-export.patch
 Patch0002: 0002-rescan-scsi-bus-dolunscan-break-to-return.patch
 Patch9004: 9004-sg3_utils-1.42-delete-lun-rescan-scsi-bus-report-error.patch 
 
-Provides:      %{name}-libs
-Obsoletes:     %{name}-libs
+Provides:      %{name}-libs = %{version}-%{release}
+Obsoletes:     %{name}-libs < %{version}-%{release}
 BuildRequires: gcc, git
 
 %description
@@ -29,7 +29,7 @@ layer or a bridge device are examples of devices that use SCSI command sets.
 
 %package devel
 Summary: A collection of tools that send SCSI commands to devices
-Obsoletes:    %{name}-libs
+Requires:    %{name}-libs
 
 %description  devel
 This subpackage contains libraries and header files for developing
@@ -75,6 +75,9 @@ rm -rf $RPM_BUILD_ROOT/%{_libdir}/*.la
 %{_mandir}/man8/*
 
 %changelog
+* Thu Apr 09 2020 Jiangping Hu <hujp1985@foxmail.com> - 1.42-11
+- Fix requires of devel package
+
 * Fri Mar 13 2020 wubo <wubo40@huawei.com> - 1.42-10
 - Type:enhancemnet
 - ID:NA