diff --git a/configure.ac b/configure.ac
index b12da24fe..c657251c3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,9 +26,9 @@ AC_CONFIG_AUX_DIR(autoconf)   # (directory containing auxillary build tools)
 # -----------------------------------------------------------------------------
 
 VERS_MAJ=4                    # first  digit of version
-VERS_INT=5                    # second digit of version
-VERS_MIN=0                    # third  digit of version
-VERS_DEV=1                    # flag: 1 = between releases development version
+VERS_INT=4                    # second digit of version
+VERS_MIN=1                    # third  digit of version
+VERS_DEV=0                    # flag: 1 = between releases development version
                               #       0 = official formal release version
 
 AM_INIT_AUTOMAKE(hercules,${VERS_MAJ}.${VERS_INT}.${VERS_MIN})