diff --git a/python-oslo.serialization.spec b/python-oslo.serialization.spec
index a3fc66f..9e9f8ed 100644
--- a/python-oslo.serialization.spec
+++ b/python-oslo.serialization.spec
@@ -1,7 +1,7 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-oslo-serialization
 Version:	4.0.1
-Release:	1
+Release:	2
 Summary:	Oslo Serialization library
 License:	Apache-2.0
 URL:		https://opendev.org/openstack/oslo.serialization
@@ -21,6 +21,8 @@ Summary:	Oslo Serialization library
 Provides:	python-oslo-serialization
 BuildRequires:	python3-devel
 BuildRequires:	python3-setuptools
+BuildRequires:  python3-pip
+BuildRequires:  python3-pbr
 %description -n python3-oslo-serialization
 OpenStack library for serialization
 
@@ -73,5 +75,7 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Fri Jan 29 2021 zhangy <zhangy1317@foxmail.com>
+- Add buildrequires
 * Fri Jan 08 2021 Python_Bot <Python_Bot@openeuler.org>
 - Package Spec generated