diff --git a/protobuf.spec b/protobuf.spec
index 7cd696be77e969dae36b3440ab8f8eefb3d3c5f1..5d268fd19569c233c189561223d6b2cdbc6818f4 100644
--- a/protobuf.spec
+++ b/protobuf.spec
@@ -8,7 +8,7 @@
 Summary:        Protocol Buffers - Google's data interchange format
 Name:           protobuf
 Version:        3.14.0
-Release:        8
+Release:        9
 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
@@ -36,6 +36,8 @@ Summary:	Protocol Buffers compiler
 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
@@ -51,6 +53,9 @@ Provides:       %{name}-static
 Provides:       %{name}-vim
 Obsoletes:      %{name}-static < %{version}
 Obsoletes:      %{name}-vim < %{version}
+Obsoletes:      protobuf2-devel
+Obsoletes:      protobuf2-vim
+Obsoletes:      protobuf2-static
 
 
 %description devel
@@ -73,6 +78,8 @@ Requires:       %{name}-devel = %{version}-%{release}
 Requires:       %{name}-lite = %{version}-%{release}
 Provides:       %{name}-lite-static
 Obsoletes:      %{name}-lite-static <  %{version}
+Obsoletes:      protobuf2-lite-devel
+Obsoletes:      protobuf2-lite-static
 
 %description lite-devel
 This package contains development libraries built with
@@ -327,6 +334,12 @@ install -p -m 0644 %{SOURCE1} %{buildroot}%{_emacs_sitestartdir}
 %endif
 
 %changelog
+* Wed Aug 27 2025 songliyang <songliyang@kylinos.cn> - 3.14.0-9
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC: obsolets protobuf2 to fix install conflict
+
 * Thu Jul 03 2025 wujichao <wujichao1@huawei.com> - 3.14.0-8
 - Type:bugfix
 - ID:NA