diff --git a/configure.ac b/configure.ac
index 8e504981c23c9dc27de658eafef7a93dccbbe07e..2bf0861095a4a84a9e3e73eb0072a6142bb88233 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@
 AC_PREREQ([2.69])
 LT_PREREQ([2.4.6])dnl
 
-m4_pushdef([mtime_version], [1, 2, 0])dnl
+m4_pushdef([mtime_version], [1, 2, 1])dnl
 AC_INIT([mtime],
   m4_join([],
     m4_argn(1, mtime_version).m4_argn(2, mtime_version).m4_argn(3, mtime_version),