diff --git a/src/general_io_mod.f90 b/src/general_io_mod.f90
index adb86b1..89cbf65 100644
--- a/src/general_io_mod.f90
+++ b/src/general_io_mod.f90
@@ -37,7 +37,7 @@ module general_io
           file_for_SC_reduced_to_prim_cell, compiler_version
 
 integer, parameter :: str_len=256
-character(len=30), parameter :: package_version="2.8.1, 2016-03-15"
+character(len=30), parameter :: package_version="2.9.0, 2016-08-08"
 character(len=str_len), parameter :: &
     file_header_BandUP="# File created by BandUP - Band Unfolding code for &
                           Plane-wave based calculations, &