diff --git a/dtkcommon-5.5.18.orig.tar.xz b/dtkcommon-5.5.18.orig.tar.xz
new file mode 100644
index 0000000..17d20fd
Binary files /dev/null and b/dtkcommon-5.5.18.orig.tar.xz differ
diff --git a/dtkcommon.spec b/dtkcommon.spec
index e23a6bd..620ac94 100644
--- a/dtkcommon.spec
+++ b/dtkcommon.spec
@@ -1,18 +1,17 @@
-%global debug_package %{nil}
-
 Name:    dtkcommon
-Version: 5.5.23
-Release: 1
+Version: 5.5.18
+Release: 1%{?dist}.01
 Summary: dtk common files
-Source0: %{name}-%{version}.tar.gz
+Source0: %{name}-%{version}.orig.tar.xz
 
 License: GPLv3
 
 BuildRequires:  qt5-qtbase-devel
 
-Conflicts:      dtkcore < 5.4.12
-Conflicts:      dtkcore-devel < 5.4.12
+Obsoletes:      dtkcore <= 5.4.10
+Obsoletes:      dtkcore-devel <= 5.4.10
 
+%global debug_package %{nil}
 
 %description
 dtk common files
@@ -20,7 +19,6 @@ dtk common files
 %package devel
 Summary:        Development package for %{sname}
 Requires:       %{name}%{?_isa} = %{version}-%{release}
-Conflicts:      dtkcore-devel < 5.4.12
 
 %description devel
 dtk common files - devel
@@ -51,11 +49,5 @@ export PATH="%{_qt5_bindir}:$PATH"
 %{_libdir}/*/mkspecs/modules/*
 
 %changelog
-* Mon Jul 24 2023 leeffo <liweiganga@uniontech.com> - 5.5.23-1
-- upgrade to version 5.5.23
-
-* Fri Jun 16 2023 liweigang <liweiganga@uniontech.com> - 5.5.18-2
-- fix: Troubleshoot downgrade issues
-
-* Mon Jun 13 2022 uoser <uoser@uniontech.com> - 5.5.18-1
-- update: update to 5.5.18-1
+* Mon Jun 13 2022 uoser <uoser@uniontech.com> - 5.5.18-1.01
+- update: update to 5.5.18-1.01