diff --git a/configure.ac b/configure.ac
index f4f3df5b..8c1ef65e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -356,7 +356,7 @@ 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=1.2.7
-  LIBISOFS_REQUIRED=1.2.6
+  LIBISOFS_REQUIRED=1.2.7
   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/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 5e0919bb..1a1398ed 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2013.03.10.193344"
+#define Xorriso_timestamP "2013.03.12.124913"