diff --git a/configure.in b/configure.in
index f0d87d9baa0769a808c572eb234bacc211ccd889..9237b3adc0e9d2516611c15acf4c89322db2b31e 100644
--- a/configure.in
+++ b/configure.in
@@ -1,10 +1,10 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT(JSBSim.cpp, 1.0.rc3-advtrim-4, jon@jsbsim.org)
+AC_INIT(JSBSim.cpp, 1.0.rc3-advtrim-5, jon@jsbsim.org)
 
 dnl set the $host variable based on local machine/os
 AC_CANONICAL_TARGET
 
-AM_INIT_AUTOMAKE(jsbsim, 1.0.rc3-advtrim-4)
+AM_INIT_AUTOMAKE(jsbsim, 1.0.rc3-advtrim-5)
 AC_CONFIG_MACRO_DIR([m4])
 
 # Before making a release, the LT_VERSION string should be modified.