diff --git a/libisoburn/trunk/configure.ac b/libisoburn/trunk/configure.ac
index 752ddb9e..7820180a 100644
--- a/libisoburn/trunk/configure.ac
+++ b/libisoburn/trunk/configure.ac
@@ -237,7 +237,7 @@ AC_CHECK_HEADER(libisofs/libisofs.h)
 
 dnl Check for proper library versions
 LIBBURN_REQUIRED=0.7.6
-LIBISOFS_REQUIRED=0.6.26
+LIBISOFS_REQUIRED=0.6.28
 PKG_CHECK_MODULES(LIBBURN, libburn-1 >= $LIBBURN_REQUIRED)
 PKG_CHECK_MODULES(LIBISOFS, libisofs-1 >= $LIBISOFS_REQUIRED)
 
diff --git a/libisoburn/trunk/libisoburn/libisoburn.h b/libisoburn/trunk/libisoburn/libisoburn.h
index c439964b..bd55c15e 100644
--- a/libisoburn/trunk/libisoburn/libisoburn.h
+++ b/libisoburn/trunk/libisoburn/libisoburn.h
@@ -216,7 +216,7 @@ void isoburn_version(int *major, int *minor, int *micro);
 */
 #define isoburn_libisofs_req_major  0
 #define isoburn_libisofs_req_minor  6
-#define isoburn_libisofs_req_micro 26 
+#define isoburn_libisofs_req_micro 28 
 
 /** The minimum version of libburn to be used with this version of libisoburn
     at compile time.
diff --git a/libisoburn/trunk/xorriso/xorriso_timestamp.h b/libisoburn/trunk/xorriso/xorriso_timestamp.h
index 6b152db3..f49cd275 100644
--- a/libisoburn/trunk/xorriso/xorriso_timestamp.h
+++ b/libisoburn/trunk/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2010.02.10.150252"
+#define Xorriso_timestamP "2010.02.10.150501"