diff --git a/ci/test-10-option-u-x.pl b/ci/test-10-option-u-x.pl
index 97acf9a..ef4a7c0 100755
--- a/ci/test-10-option-u-x.pl
+++ b/ci/test-10-option-u-x.pl
@@ -17,7 +17,7 @@ $cmd->stderr_is_eq("");
 {
 my $cmd = Test::Command->new(cmd => "fping -v");
 $cmd->exit_is_num(0);
-$cmd->stdout_like(qr{ping: Version 4\.\d+(-rc\d+)?
+$cmd->stdout_like(qr{ping: Version [45]\.\d+(-rc\d+)?
 fping: comments to david\@schweikert\.ch
 });
 $cmd->stderr_is_eq("");
diff --git a/configure.ac b/configure.ac
index 7bc8032..764e958 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 dnl Minimum Autoconf version required.
 AC_PREREQ(2.59)
 
-AC_INIT([fping],[4.3])
+AC_INIT([fping],[5.0-rc1])
 AC_GNU_SOURCE
 
 dnl --disable-ipv4