diff --git a/docbook-dtds.spec b/docbook-dtds.spec
index 31acffe..4b069f1 100644
--- a/docbook-dtds.spec
+++ b/docbook-dtds.spec
@@ -3,7 +3,7 @@
 
 Name: docbook-dtds
 Version: 1.0
-Release: 51%{?dist}
+Release: 52%{?dist}
 Group: Applications/Text
 
 Summary: SGML and XML document type definitions for DocBook
@@ -33,8 +33,8 @@ Provides: docbook-dtd44-xml = %{version}-%{release}
 Provides: docbook-dtd45-sgml = %{version}-%{release}
 Provides: docbook-dtd45-xml = %{version}-%{release}
 
-Requires(post): libxml2
-Requires(postun): libxml2
+Requires(post): /usr/bin/xmlcatalog
+Requires(postun): /usr/bin/xmlcatalog
 Requires(post): /bin/chmod
 Requires: sgml-common
 Requires: xml-common
@@ -400,6 +400,9 @@ do
 done
 
 %changelog
+* Wed Mar 03 2010 Ondrej Vasik <ovasik@redhat.com> - 1.0-52
+- remove explicit lib dependency (#225700)
+
 * Wed Mar 03 2010 Ondrej Vasik <ovasik@redhat.com> - 1.0-51
 - fix Merge Review comments (#225700) - unversion requires,
   fix buildroot