diff --git a/nasm.spec b/nasm.spec
index a757218126c9e241972b91a6545805b6196ca803..d1b6a9bb14bdd842407cf07d980af4887c1426b1 100644
--- a/nasm.spec
+++ b/nasm.spec
@@ -8,7 +8,7 @@
 
 Name:     nasm
 Version:  2.15.05
-Release:  2
+Release:  3
 Summary:  The Netwide Assembler, a portable x86 assembler with Intel-like syntax
 License:  BSD
 URL:      http://www.nasm.us
@@ -21,7 +21,7 @@ Patch6000: enable-make-check.patch
 BuildRequires: perl(Env) autoconf asciidoc xmlto gcc make git
 
 Provides:  %{name}-rdoff
-Obsoletes: %{name}-rdoff
+Obsoletes: %{name}-rdoff < %{version}-%{release}
 
 %description
 NASM is the Netwide Assembler, a free portable assembler for the Intel
@@ -37,7 +37,7 @@ BuildRequires: perl(Sort::Versions)
 BuildRequires: adobe-source-sans-pro-fonts adobe-source-code-pro-fonts
 BuildRequires: ghostscript
 Provides:  %{name}-doc
-Obsoletes: %{name}-doc
+Obsoletes: %{name}-doc < %{version}-%{release}
 %endif
 BuildArch: noarch
 
@@ -89,13 +89,17 @@ make test
 %{_mandir}/man1/ld*
 
 %changelog
+* Sat Oct 22 2022 zhangruifang <zhangruifang1@h-partners.com> - 2.15.05-3
+- add version number for Obsoletes
+- fix bogus date in changelog
+
 * Sat Nov 27 2021 ExtinctFire <shenyining_00@126.com> - 2.15.05-2
 - enable make check
 
 * Thu Jan 28 2021 liudabo <liudabo1@huawei.com> - 2.15.05-1
 - upgrade version to 2.15.05
 
-* Thu Jan 07 2020 shixuantong <shixuantong@huawei.com> - 2.15.03-2
+* Thu Jan 07 2021 shixuantong <shixuantong@huawei.com> - 2.15.03-2
 - fix CVE-2019-20352 CVE-2020-24241 
 
 * Thu Jul 23 2020 shixuantong <shixuantong@huawei.com> - 2.15.03-1