diff --git a/python-pyserial.spec b/python-pyserial.spec
index ee3d5e2..73843f3 100644
--- a/python-pyserial.spec
+++ b/python-pyserial.spec
@@ -1,7 +1,7 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-pyserial
 Version:	3.5
-Release:	1
+Release:	2
 Summary:	Python Serial Port Extension
 License:	BSD
 URL:		https://github.com/pyserial/pyserial
@@ -16,7 +16,6 @@ Summary:	Python Serial Port Extension
 Provides:	python-pyserial
 BuildRequires:	python3-devel
 BuildRequires:	python3-setuptools
-Requires:	python3-hidapi
 %description -n python3-pyserial
 Python Serial Port Extension
 
@@ -69,5 +68,7 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Tue Aug 03 2021 openstack-sig <openstack@openeuler.org>
+- Drop useless requires
 * Fri Jul 09 2021 openstack-sig <openstack@openeuler.org>
 - Package Spec generated