diff --git a/configure.ac b/configure.ac
index a78e345..ae3af8f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,8 +5,8 @@ AC_PREREQ([2.63])
 dnl Package version
 define([VERSION_MAJOR], [3])
 define([VERSION_MINOR], [1])
-define([VERSION_FIX], [7])
-define([VERSION_SUFFIX], [])
+define([VERSION_FIX], [8])
+define([VERSION_SUFFIX], [_master])
 
 dnl Required program versions
 define([MIN_IPRANGE_VERSION], [1.0.2])