diff --git a/optipng.spec b/optipng.spec
index 85f3b91..727f7d4 100644
--- a/optipng.spec
+++ b/optipng.spec
@@ -1,9 +1,9 @@
 Name:           optipng
 Version:        0.7.7
-Release:        1
+Release:        2
 Summary:        PNG optimizer and converter
 
-License:        zlib
+License:        Zlib
 URL:            http://optipng.sourceforge.net/
 Source0:        http://downloads.sourceforge.net/optipng/%{name}-%{version}.tar.gz
 
@@ -54,6 +54,9 @@ chmod -c 755 $RPM_BUILD_ROOT%{_bindir}/optipng
 
 
 %changelog
+* Wed Aug 03 2022 liukuo <liukuo@kylinos.cn> - 0.7.7-2
+- License compliance rectification
+
 * Tue Jun 8 2021 wutao <wutao61@huawei.com> - 0.7.7-1
 - upgrade to 0.7.7 to fix CVE-2016-3981 CVE-2016-3982