diff --git a/configure.ac b/configure.ac
index 06f189cb..b19d331d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -322,7 +322,7 @@ dnl If PKG_CHECK_MODULES is to be used after this if-block,
 dnl then it might be necessary to perform PKG_PROG_PKG_CONFIG before the block.
 
   LIBBURN_REQUIRED=1.2.0
-  LIBISOFS_REQUIRED=1.2.1
+  LIBISOFS_REQUIRED=1.2.3
   PKG_CHECK_MODULES(LIBBURN, libburn-1 >= $LIBBURN_REQUIRED)
   PKG_CHECK_MODULES(LIBISOFS, libisofs-1 >= $LIBISOFS_REQUIRED)
   if test x$LIBCDIO_DEF = x; then
diff --git a/libisoburn/libisoburn.h b/libisoburn/libisoburn.h
index 06c105c0..6b21cda2 100644
--- a/libisoburn/libisoburn.h
+++ b/libisoburn/libisoburn.h
@@ -242,7 +242,7 @@ void isoburn_version(int *major, int *minor, int *micro);
 */
 #define isoburn_libisofs_req_major  1
 #define isoburn_libisofs_req_minor  2
-#define isoburn_libisofs_req_micro  2 
+#define isoburn_libisofs_req_micro  3 
 
 /** The minimum version of libburn to be used with this version of libisoburn
     at compile time.
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index e9009d87..07a59e97 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2012.04.19.073152"
+#define Xorriso_timestamP "2012.04.19.074422"