diff --git a/configure.ac b/configure.ac
index 9e1f6bb3e22a3bebb36788289517f84a12fccd62..a00e76eaafb78527a457ed0d8834a9ab76392fab 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.59)
-AC_INIT(MElt, 2.0b4, Benoit.Sagot@inria.fr and Pascal.Denis@inria.fr)
+AC_INIT(MElt, 2.0b5, Benoit.Sagot@inria.fr and Pascal.Denis@inria.fr)
 AM_INIT_AUTOMAKE
 
 # Checks for programs.