diff --git a/p11-kit.spec b/p11-kit.spec
index 9ca108f..fafe21f 100644
--- a/p11-kit.spec
+++ b/p11-kit.spec
@@ -1,6 +1,6 @@
 Name:           p11-kit
 Version:	0.23.14
-Release:	3
+Release:	4
 Summary:        Provides a way to load and enumerate PKCS#11 modules.
 License:        BSD
 URL:            http://p11-glue.freedesktop.org/p11-kit.html
@@ -45,6 +45,8 @@ Provides header and libraries files for applications use %{name} to develop.
 %package trust
 Summary:        Trust policy module of %{name}
 Requires:       %{name} = %{version}-%{release}
+Requires(post): %{_sbindir}/update-alternatives
+Requires(postun): %{_sbindir}/update-alternatives
 Conflicts:      nss < 3.14.3-9
 
 %description trust
@@ -126,6 +128,9 @@ fi
 %{_libexecdir}/p11-kit/trust-extract-compat
 
 %changelog
+* Fri Dec 20 2019 openEuler Buildteam <buildteam@openeuler.org> - 0.23.14-4
+- Add missing Requires
+
 * Wed Nov 20 2019 openEuler Buildteam <buildteam@openeuler.org> - 0.23.14-3
 - Add Buildrequires: libxslt