diff --git a/configure.in b/configure.in
index 11aad61..a8c5828 100644
--- a/configure.in
+++ b/configure.in
@@ -2,7 +2,7 @@ AC_INIT(Makefile.am)
 #AC_PREREQ(2.50)
 AC_CONFIG_AUX_DIR(config)
 AM_CONFIG_HEADER(config/config.h)
-AM_INIT_AUTOMAKE(tclap,1.2.0)
+AM_INIT_AUTOMAKE(tclap,1.2.1)
 AC_PROG_CXX
 AC_CXX_HAVE_SSTREAM
 AC_CXX_HAVE_STRSTREAM