diff --git a/protobuf.spec b/protobuf.spec
index 165c17608b61afa2b7391da933d04d999a6c8678..81ee211c5e047ef715c59a0a66964a0db5424826 100644
--- a/protobuf.spec
+++ b/protobuf.spec
@@ -7,7 +7,7 @@
 Summary:        Protocol Buffers - Google's data interchange format
 Name:           protobuf
 Version:        25.1
-Release:        11
+Release:        12
 License:        BSD
 URL:            https://github.com/protocolbuffers/protobuf
 Source:         https://github.com/protocolbuffers/protobuf/releases/download/v%{version}%{?rcver}/%{name}-all-%{version}%{?rcver}.tar.gz
@@ -38,6 +38,7 @@ Requires:       %{name} = %{version}-%{release}
 Obsoletes:      protobuf-emacs < %{version}
 Obsoletes:      protobuf-emacs-el < %{version}
 Obsoletes:      protobuf2-compiler
+Obsoletes:      protobuf2-emacs
 Requires:       emacs-filesystem >= %{_emacs_version}
 
 %description compiler
@@ -403,6 +404,12 @@ install -p -m 0644 %{SOURCE1} %{buildroot}%{_emacs_sitestartdir}
 %endif
 
 %changelog
+* Wed Aug 27 2025 songliyang <songliyang@kylinos.cn> - 25.1-12
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC: obsolets protobuf2-emacs to fix install conflict
+
 * Thu Jul 03 2025 wujichao <wujichao1@huawei.com> - 25.1-11
 - Type:bugfix
 - ID:NA