diff --git a/configure.ac b/configure.ac
index 6cc50ce0b..75185b3d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -92,7 +92,7 @@ AC_CHECK_HEADER([execinfo.h], AC_DEFINE(HAVE_EXECINFO_H))
 PKG_CHECK_MODULES(VALGRIND, [valgrind], AC_DEFINE(HAVE_VALGRIND_H),
                              AC_MSG_NOTICE([valgrind not found                                 (optional)]))
 
-PKG_CHECK_MODULES(NOBUGMT, [nobugmt >= 201005.1],
+PKG_CHECK_MODULES(NOBUGMT, [nobugmt >= 201006.1],
 			   AC_DEFINE(HAVE_NOBUGMT_H),
 			   AC_MSG_ERROR([Missing required nobug version                    (http://www.lumiera.org/nobug_manual.html)])
 )