diff --git a/.gitignore b/.gitignore
index be4a709..3639a03 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /atkmm-2.22.5.tar.bz2
 /atkmm-2.22.6.tar.xz
 /atkmm-2.22.7.tar.xz
+/atkmm-2.23.1.tar.xz
diff --git a/mingw-atkmm.spec b/mingw-atkmm.spec
index 5b5bb42..aa30c59 100644
--- a/mingw-atkmm.spec
+++ b/mingw-atkmm.spec
@@ -1,14 +1,14 @@
 %?mingw_package_header
 
 Name:           mingw-atkmm
-Version:        2.22.7
-Release:        7%{?dist}
+Version:        2.23.1
+Release:        1%{?dist}
 Summary:        MinGW Windows C++ interface for the ATK library
 
 License:        LGPLv2+
 Group:          Development/Libraries
 URL:            http://www.gtkmm.org/
-Source0:        http://ftp.gnome.org/pub/GNOME/sources/atkmm/2.22/atkmm-%{version}.tar.xz
+Source0:        http://ftp.gnome.org/pub/GNOME/sources/atkmm/2.23/atkmm-%{version}.tar.xz
 
 BuildArch:      noarch
 
@@ -100,6 +100,9 @@ rm -f $RPM_BUILD_ROOT%{mingw64_libdir}/*.la
 
 
 %changelog
+* Wed Sep 02 2015 Thomas Sailer <t.sailer@alumni.ethz.ch> - 2.23.1-1
+- update to 2.23.1
+
 * Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.22.7-7
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild
 
diff --git a/sources b/sources
index 9ef1309..08d9bfc 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-fec7db3fc47ba2e0c95d130ec865a236  atkmm-2.22.7.tar.xz
+9e0ac0121670749c990f1f4d8450afe5  atkmm-2.23.1.tar.xz