diff --git a/libgo/configure b/libgo/configure
index 22f935200cc0..08ddb1808eef 100755
--- a/libgo/configure
+++ b/libgo/configure
@@ -2503,7 +2503,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 ac_config_headers="$ac_config_headers config.h"
 
 
-libtool_VERSION=5:0:0
+libtool_VERSION=6:0:0
 
 
 # Default to --enable-multilib
diff --git a/libgo/configure.ac b/libgo/configure.ac
index 1f5aea8c6763..5e1e4d92235c 100644
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -11,7 +11,7 @@ AC_INIT(package-unused, version-unused,, libgo)
 AC_CONFIG_SRCDIR(Makefile.am)
 AC_CONFIG_HEADER(config.h)
 
-libtool_VERSION=5:0:0
+libtool_VERSION=6:0:0
 AC_SUBST(libtool_VERSION)
 
 AM_ENABLE_MULTILIB(, ..)