diff --git a/configure.ac b/configure.ac
index fb2435a5..606c5f42 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_INIT
-AM_INIT_AUTOMAKE(shadow, 4.3)
+AM_INIT_AUTOMAKE(shadow, 4.3.1)
 AC_CONFIG_HEADERS([config.h])
 
 dnl Some hacks...