configure.ac: bump to version 1.8.1 for the point release
diff --git a/configure.ac b/configure.ac
index e9fcf51..c2a804e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 
 m4_define([wayland_major_version], [1])
 m4_define([wayland_minor_version], [8])
-m4_define([wayland_micro_version],  [0])
+m4_define([wayland_micro_version],  [1])
 m4_define([wayland_version],
           [wayland_major_version.wayland_minor_version.wayland_micro_version])