diff --git a/packages/90_iohelper.cmake b/packages/90_iohelper.cmake
index bb0d2c252..49a5dab7b 100644
--- a/packages/90_iohelper.cmake
+++ b/packages/90_iohelper.cmake
@@ -1,90 +1,91 @@
 #===============================================================================
 # @file   90_iohelper.cmake
 #
 # @author Nicolas Richart <nicolas.richart@epfl.ch>
 #
 # @date creation: Tue Nov 29 2011
 # @date last modification: Tue Sep 02 2014
 #
 # @brief  package description for iohelper
 #
 # @section LICENSE
 #
 # Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
 # Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
 #
 # Akantu is free  software: you can redistribute it and/or  modify it under the
 # terms  of the  GNU Lesser  General Public  License as  published by  the Free
 # Software Foundation, either version 3 of the License, or (at your option) any
 # later version.
 #
 # Akantu is  distributed in the  hope that it  will be useful, but  WITHOUT ANY
 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 # A  PARTICULAR PURPOSE. See  the GNU  Lesser General  Public License  for more
 # details.
 #
 # You should  have received  a copy  of the GNU  Lesser General  Public License
 # along with Akantu. If not, see <http://www.gnu.org/licenses/>.
 #
 #===============================================================================
 
 option(AKANTU_USE_THIRD_PARTY_IOHELPER "Automatic download of the IOHelper library" ON)
 option(AKANTU_USE_IOHELPER "Add IOHelper support in akantu" ON)
 
 mark_as_advanced(AKANTU_USE_IOHELPER)
 mark_as_advanced(AKANTU_USE_THIRD_PARTY_IOHELPER)
 
 if (AKANTU_USE_THIRD_PARTY_IOHELPER AND AKANTU_USE_IOHELPER)
-  set(IOHELPER_VERSION "1.1")
+  set(IOHELPER_VERSION "1.1.1")
   set(IOHELPER_GIT     "https://git.epfl.ch/repo/iohelper.git")
 
   include(ExternalProject)
 
   ExternalProject_Add(IOHelper
     PREFIX ${PROJECT_BINARY_DIR}/third-party
     GIT_REPOSITORY ${IOHELPER_GIT}
+    GIT_TAG ${IOHELPER_VERSION}
     CMAKE_ARGS <SOURCE_DIR>/
     CMAKE_CACHE_ARGS -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR> -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE} -DCMAKE_CXX_COMPILER:PATH=${CMAKE_CXX_COMPILER}
     BUILD_COMMAND make
     INSTALL_COMMAND make install
     )
 
   set_third_party_shared_libirary_name(IOHELPER_LIBRARIES iohelper)
   list(APPEND AKANTU_EXTERNAL_LIBRARIES ${IOHELPER_LIBRARIES})
   list(APPEND AKANTU_EXTERNAL_LIB_INCLUDE_DIR ${PROJECT_BINARY_DIR}/third-party/include/iohelper)
 
   list(APPEND AKANTU_EXTRA_TARGET_DEPENDENCIES IOHelper)
   set(AKANTU_IOHELPER_INCLUDE_DIR ${PROJECT_BINARY_DIR}/third-party/include/iohelper)
   set(AKANTU_IOHELPER ON)
 else()
   add_optional_external_package(IOHelper "Add IOHelper support in akantu" ON)
 endif()
 
 
 set(AKANTU_IOHELPER_FILES
   io/dumper/dumper_iohelper.hh
   io/dumper/dumper_iohelper.cc
   io/dumper/dumper_paraview.hh
   io/dumper/dumper_text.cc
   io/dumper/dumper_text.hh
   io/dumper/dumper_paraview.cc
   io/dumper/dumper_homogenizing_field.hh
   io/dumper/dumper_type_traits.hh
   io/dumper/dumper_compute.hh
   io/dumper/dumper_nodal_field.hh
   io/dumper/dumper_quadrature_points_field.hh
   io/dumper/dumper_variable.hh
   io/dumper/dumper_iterator_helper.hh
   io/dumper/dumper_connectivity_field.hh
   io/dumper/dumper_padding_helper.hh
   io/dumper/dumper_elemental_field.hh
   io/dumper/dumper_element_iterator.hh
   io/dumper/dumper_material_internal_field.hh
   io/dumper/dumper_generic_elemental_field.hh
   io/dumper/dumper_generic_elemental_field_tmpl.hh
   )
 
 set(AKANTU_IOHELPER_DOCUMENTATION "
 This package activates the IOHelper facilities withing Akantu. This is mandatory if you want to be able to output Paraview files
 as well as any Dumper within Akantu.
 ")