diff --git a/.gitignore b/.gitignore
index f49e532..9bad18f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-SOURCES/mdds_0.12.1.tar.bz2
+SOURCES/mdds-1.2.3.tar.bz2
diff --git a/.mdds.metadata b/.mdds.metadata
index 556cd8a..f446cce 100644
--- a/.mdds.metadata
+++ b/.mdds.metadata
@@ -1 +1 @@
-e7469349f8d0c65545896fe553918f3ea93bd84d SOURCES/mdds_0.12.1.tar.bz2
+f4b8dd11622725eba6ed4238c47cddadc844bf40 SOURCES/mdds-1.2.3.tar.bz2
diff --git a/SPECS/mdds.spec b/SPECS/mdds.spec
index 36d84af..69a0965 100644
--- a/SPECS/mdds.spec
+++ b/SPECS/mdds.spec
@@ -1,15 +1,16 @@
 # header-only library
 %global debug_package %{nil}
 
+%global apiversion 1.2
+
 Name: mdds
-Version: 0.12.1
+Version: 1.2.3
 Release: 1%{?dist}
 Summary: A collection of multi-dimensional data structures and indexing algorithms
 
-Group: Development/Libraries
 License: MIT
 URL: https://gitlab.com/mdds/mdds
-Source0: http://kohei.us/files/%{name}/src/%{name}_%{version}.tar.bz2
+Source0: http://kohei.us/files/%{name}/src/%{name}-%{version}.tar.bz2
 
 BuildRequires: boost-devel
 
@@ -18,7 +19,6 @@ BuildRequires: boost-devel
 indexing algorithms.
 
 %package devel
-Group: Development/Libraries
 Summary: Headers for %{name}
 BuildArch: noarch
 Requires: boost-devel
@@ -36,30 +36,31 @@ It implements the following data structures:
 * multi type matrix
 * multi type vector
 
-See README for a brief description of the structures.
+See README.md for a brief description of the structures.
 
 %prep
-%autosetup -n %{name}_%{version} -p1
+%autosetup -p1
 
 %build
 %configure
 
 %install
-install -d -m 0755 %{buildroot}/%{_includedir}/mdds
-cp -pr include/mdds/* %{buildroot}/%{_includedir}/mdds
-install -d -m 0755 %{buildroot}/%{_datadir}/pkgconfig
-install -p -m 0644 misc/%{name}.pc %{buildroot}/%{_datadir}/pkgconfig
+%make_install
+rm -rf %{buildroot}%{_docdir}/%{name}
 
 %check
 make check %{?_smp_mflags}
 
 %files devel
-%{_includedir}/%{name}
-%{_datadir}/pkgconfig/%{name}.pc
-%doc AUTHORS NEWS README
+%{_includedir}/%{name}-%{apiversion}
+%{_datadir}/pkgconfig/%{name}-%{apiversion}.pc
+%doc AUTHORS NEWS README.md
 %license COPYING
 
 %changelog
+* Mon Sep 18 2017 David Tardon <dtardon@redhat.com> - 1.2.3-1
+- Resolves: rhbz#1477097 rebase to 1.2.3
+
 * Mon Feb 22 2016 David Tardon <dtardon@redhat.com> - 0.12.1-1
 - Resolves: rhbz#1290153 rebase to 0.12.1