diff --git a/nodelet_core.spec b/nodelet_core.spec
index cf09837..7c949cc 100644
--- a/nodelet_core.spec
+++ b/nodelet_core.spec
@@ -1,6 +1,6 @@
 Name:		nodelet_core
 Version:	1.9.16
-Release:	0
+Release:	2
 Summary:	This is ROS melodic nodelet_core Package
 License:	GPL
 URL:		https://github.com/ros-gbp/nodelet_core-release/archive/release/melodic/nodelet_core
@@ -9,8 +9,8 @@ BuildRequires:	gcc-c++
 BuildRequires:	cmake
 BuildRequires:	lz4-devel
 BuildRequires:	bzip2-devel
-BuildRequires:	python-devel
-BuildRequires:	python-setuptools
+BuildRequires:	python3-devel
+BuildRequires:	python3-setuptools
 #Requires:  python-empy
 BuildRequires:	openssl-devel
 #BuildRequires:	gcc-gfortran
@@ -21,6 +21,7 @@ BuildRequires:	boost-devel
 BuildRequires:	uuid-devel
 BuildRequires:	uuid
 BuildRequires:	libuuid-devel
+BuildRequires:  python3-unversioned-command
 #BuildRequires:	uuid-devel
 #BuildRequires:	python3-devel
 #BuildRequires:	boost-python3-devel
@@ -180,6 +181,8 @@ echo %{buildroot}
 #/usr/lib/share/catkin/cmake/*
 
 %changelog
-* Thu May 28 2020 openEuler Buildteam <buildteam@openeuler.org> - 19.4-1
-- Package init
+* Sat Feb 20 2021 zhangjiapeng <zhangjiapeng9@huawei.com> - 1.9.16-2
+- Add compilation dependency python3-unversioned-command
 
+* Thu May 28 2020 openEuler Buildteam <buildteam@openeuler.org> - 1.9.16-1
+- Package init