diff --git a/configure.ac b/configure.ac
index f13332517..8c467ec6c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@ AC_PREREQ(2.52)
 dnl Initialize the automake stuff
 dnl set the $host variable based on local machine/os
 AC_CANONICAL_TARGET
-AM_INIT_AUTOMAKE(FlightGear, 1.9.0)
+AM_INIT_AUTOMAKE(FlightGear, 1.9.1)
 
 dnl Checks for programs.
 AC_PROG_MAKE_SET