diff --git a/perl.changes b/perl.changes
index 6b313af..719c713 100644
--- a/perl.changes
+++ b/perl.changes
@@ -1,7 +1,7 @@
 -------------------------------------------------------------------
 Tue Jun 11 04:31:59 UTC 2013 - coolo@suse.com
 
-- obsolete perl-PathTools
+- obsolete perl-PathTools and other modules in core
 
 -------------------------------------------------------------------
 Thu Jun  6 15:21:34 CEST 2013 - mls@suse.de
diff --git a/perl.spec b/perl.spec
index 36ccb9c..eb31ad7 100644
--- a/perl.spec
+++ b/perl.spec
@@ -83,8 +83,7 @@ Provides:       perl-IO-Zlib
 Obsoletes:      perl-IO-Zlib
 Provides:       perl-Archive-Tar
 Obsoletes:      perl-Archive-Tar
-Provides:       perl-Module-Build = 0.4003
-Obsoletes:      perl-Module-Build < 0.4003
+Obsoletes:      perl-Module-Build <= 0.4003
 Provides:       perl-Module-Pluggable = 4.0
 Obsoletes:      perl-Module-Pluggable < 4.0
 Provides:       perl-Locale-Maketext-Simple = 0.21
@@ -96,6 +95,10 @@ Obsoletes:      perl-Pod-Simple < 3.2
 Provides:       perl-ExtUtils-ParseXS
 Obsoletes:      perl-ExtUtils-ParseXS
 Provides:       perl-version
+Obsoletes:      perl-CPAN-Meta <= 2.120921
+Obsoletes:      perl-CPAN-Meta-YAML <= 0.008
+Obsoletes:      perl-ExtUtils-CBuilder <= 0.280205
+Obsoletes:      perl-Parse-CPAN-Meta <= 1.4404
 Obsoletes:      perl-PathTools <= 3.40
 Obsoletes:      perl-version