diff --git a/configure.in b/configure.in
index 2c7f5a3e..e933443f 100644
--- a/configure.in
+++ b/configure.in
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_INIT(src/control/control.c)
-AM_INIT_AUTOMAKE(alsa-lib, 0.4.1)
+AM_INIT_AUTOMAKE(alsa-lib, 0.5.0)
 AM_CONDITIONAL(INSTALL_M4, test "x${ACLOCAL}" = "xaclocal")
 
 AC_PREFIX_DEFAULT(/usr)
diff --git a/src/Makefile.am b/src/Makefile.am
index b1532b53..9f95f759 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -5,7 +5,7 @@ libasound_la_SOURCES = error.c
 libasound_la_LIBADD = control/libcontrol.la mixer/libmixer.la pcm/libpcm.la \
                       rawmidi/librawmidi.la timer/libtimer.la seq/libseq.la \
 		      instr/libinstr.la
-libasound_la_LDFLAGS = -version-info 4:1:4
+libasound_la_LDFLAGS = -version-info 5:0:5
 
 control/libcontrol.la:
 	$(MAKE) -C control libcontrol.la