diff --git a/SWIG/configure.in b/SWIG/configure.in
index 806dea407..6edc0349f 100644
--- a/SWIG/configure.in
+++ b/SWIG/configure.in
@@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script.
 dnl The macros which aren't shipped with the autotools are stored in the 
 dnl Tools/config directory in .m4 files.
 
-AC_INIT([swig],[1.3.30],[http://www.swig.org])
+AC_INIT([swig],[1.3.31],[http://www.swig.org])
 AC_PREREQ(2.58)
 AC_CONFIG_SRCDIR([Source/Swig/swig.h])
 AC_CONFIG_AUX_DIR([Tools/config])