diff --git a/postgresql-13.spec b/postgresql-13.spec
index ec9eab703bb46c7fa8f689f6b9fa621a469b99bd..77549883479b4e44d034790959ab041fce3b6671 100644
--- a/postgresql-13.spec
+++ b/postgresql-13.spec
@@ -36,7 +36,7 @@ Summary: PostgreSQL client programs
 Name: postgresql-13
 %global majorversion 13
 Version: %{majorversion}.21
-Release: 1
+Release: 2
 
 # The PostgreSQL license is very similar to other MIT licenses, but the OSI
 # recognizes it as an independent license, so we do as well.
@@ -166,6 +166,7 @@ postgresql-server sub-package.
 %package private-libs
 Summary: The shared libraries required only for this build of PostgreSQL server
 Group: Applications/Databases
+Conflicts: postgresql-13 < 13.21-2
 # for /sbin/ldconfig
 Requires(post): glibc
 Requires(postun): glibc
@@ -960,9 +961,6 @@ make -C postgresql-setup-%{setup_version} check
 # so that extensions can use this dir.
 %dir %{_libdir}/pgsql/bitcode
 %endif
-%if ! %external_libpq
-%{_libdir}/libpq.so.*
-%endif
 
 %files docs
 %doc *-US.pdf
@@ -1300,6 +1298,9 @@ make -C postgresql-setup-%{setup_version} check
 
 
 %changelog
+* Sun Jun 15 2025 Funda Wang <fundawang@yeah.net> - 13.21-2
+- remove duplicate shared libs
+
 * Fri May 09 2025 Funda Wang <fundawang@yeah.net> - 13.21-1
 - update to 13.21