--- a/configure.ac
+++ b/configure.ac
@@ -4,8 +4,8 @@
 AC_PREREQ([2.63])
 AC_INIT([libbs2b], [3.1.0], [boris_mikhaylov@users.sourceforge.net])
 AC_CONFIG_AUX_DIR([build-aux])
-AM_INIT_AUTOMAKE([1.10.1 -Wall foreign subdir-objects
-                  dist-zip dist-bzip2 dist-lzma])
+AM_INIT_AUTOMAKE([1.11.2 -Wall foreign subdir-objects
+                  dist-zip dist-bzip2 dist-xz])
 AC_CONFIG_SRCDIR([src/bs2b.h])
 
 # Checks for programs.
