diff --git a/dpdk.spec b/dpdk.spec
index 00ac17f1130706199b90e674728b29197de675d2..a25f5da0c09b453ad3abe2e6dba4a30217229a42 100644
--- a/dpdk.spec
+++ b/dpdk.spec
@@ -1,6 +1,6 @@
 Name: dpdk
 Version: 19.11
-Release: 3
+Release: 4
 Packager: packaging@6wind.com
 URL: http://dpdk.org
 %global source_version  19.11
@@ -34,7 +34,7 @@ BuildRequires: module-init-tools uname-build-checks libnl3 libmnl
 BuildRequires: glibc glibc-devel libibverbs libibverbs-devel libmnl-devel
 BuildRequires: texlive
 
-Requires: pyelftools
+Requires: python3-pyelftools
 
 %define kern_devel_ver   %(uname -r)
 %description
@@ -173,6 +173,9 @@ strip -g $RPM_BUILD_ROOT/lib/modules/${namer}/extra/dpdk/rte_kni.ko
 /usr/sbin/depmod
 
 %changelog
+* Wed Sep 23 2020 hubble_zhu<hubble_zhu@qq.com> - 19.11-4
+-update pyelftools to python3-pyelftools 
+
 * Tue Sep 22 2020 hubble_zhu<hubble_zhu@qq.com> - 19.11-3
 -add requires for dpdk-pmdinfo