diff --git a/configure.ac b/configure.ac
index 0ad2ef3..629135e 100755
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.67])
-AC_INIT([abt-io], [0.5], [],[],[])
+AC_INIT([abt-io], [0.5.1], [],[],[])
 AC_CONFIG_MACRO_DIRS([m4])
 LT_INIT