diff --git a/configure.ac b/configure.ac
index d79c8687b2873a70ae8f92e2dbd4133665ba0de3..93b3e64588e9c767594fde6833561908266c8508 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.52)
-AC_INIT([alberta], [1.2-pre8], [claus@mathematik.uni-freiburg.de])
+AC_INIT([alberta], [1.3-alpha], [claus@mathematik.uni-freiburg.de,koester@math.uni-augsburg.de])
 
 AC_CONFIG_SRCDIR([ALBERTA/src/Common/alberta.h])
 AM_MAINTAINER_MODE