diff --git a/apps/CMakeLists.txt b/apps/CMakeLists.txt
index 6cca16f..37d61b6 100644
--- a/apps/CMakeLists.txt
+++ b/apps/CMakeLists.txt
@@ -1,55 +1,56 @@
 MESSAGE(STATUS "processing RTToolbox apps")
 
 
 #extract and build ArgumentParsingLib
 include(ExternalProject)
 message(STATUS "ArgumentParsingLib will be automatically downloaded and built.")
 set(ArgumentParsingLib_SOURCE_DIR "${CMAKE_BINARY_DIR}/external/ArgumentParsingLib-src")
 set(ArgumentParsingLib_BUILD_DIR "${CMAKE_BINARY_DIR}/external/ArgumentParsingLib-build")
 set(ArgumentParsingLib_CMAKE_DIR "${CMAKE_BINARY_DIR}/external/ArgumentParsingLib-cmake")
 
 
 IF(BUILD_SHARED_LIBS OR RTTB_USE_MITK_BOOST)
   SET(ARG_BUILD_SHARED_LIBS ON)
 ELSE(BUILD_SHARED_LIBS OR RTTB_USE_MITK_BOOST)
   SET(ARG_BUILD_SHARED_LIBS OFF)
 ENDIF(BUILD_SHARED_LIBS OR RTTB_USE_MITK_BOOST)
 
 ExternalProject_Add(
 	ArgumentParsingLib
 	URL ${RTToolbox_SOURCE_DIR}/utilities/ArgumentParsingLib/ArgumentParsingLib.tar.gz
+	URL_HASH SHA1=f8b18b107af82f9e62324c21b967ab925972b8de
 	SOURCE_DIR ${ArgumentParsingLib_SOURCE_DIR}
 	BINARY_DIR ${ArgumentParsingLib_BUILD_DIR}
 	PREFIX ${ArgumentParsingLib_CMAKE_DIR}
 	INSTALL_COMMAND ""
 	UPDATE_COMMAND ""
 	CMAKE_ARGS 
 		-DBUILD_TESTS:BOOL=OFF
 		-DBoost_INCLUDE_DIR:STRING=${Boost_INCLUDE_DIR}
 		-DBUILD_SHARED_LIBS:BOOL=${ARG_BUILD_SHARED_LIBS}
 )
 
 OPTION(BUILD_App_DoseAcc "Determine if the demo application DoseAcc will be generated." ON)
 IF(BUILD_App_DoseAcc)
 	ADD_SUBDIRECTORY(DoseAcc)
 ENDIF()
 
 OPTION(BUILD_App_DoseMap "Determine if the application DoseMap will be generated." ON)
 IF(BUILD_App_DoseMap)
 	ADD_SUBDIRECTORY(DoseMap)
 ENDIF()
 
 OPTION(BUILD_App_DoseTool "Determine if the application DoseTool will be generated." ON)
 IF(BUILD_App_DoseTool)
 	ADD_SUBDIRECTORY(DoseTool)
 ENDIF()
 
 OPTION(BUILD_App_VoxelizerTool "Determine if the application VoxelizerTool will be generated." ON)
 IF(BUILD_App_VoxelizerTool)
 	ADD_SUBDIRECTORY(VoxelizerTool)
 ENDIF()
 
 OPTION(BUILD_App_BioModelCalc "Determine if the demo application BioModelCalc will be generated." ON)
 IF(BUILD_App_BioModelCalc)
 	ADD_SUBDIRECTORY(BioModelCalc)
 ENDIF()
\ No newline at end of file
diff --git a/testing/CMakeLists.txt b/testing/CMakeLists.txt
index 4e48b98..237a9aa 100644
--- a/testing/CMakeLists.txt
+++ b/testing/CMakeLists.txt
@@ -1,91 +1,92 @@
 MESSAGE(STATUS "processing RTToolbox testing code")
 
 # Testing branch
 PROJECT(RTTBTesting)
 
 #-----------------------------------------------------------------------------
 # extract and build Litmus
 #-----------------------------------------------------------------------------
 
 include(ExternalProject)
 message(STATUS "Litmus will be automatically downloaded and built.")
 set(LITMUS_SOURCE_DIR "${CMAKE_BINARY_DIR}/external/Litmus-src")
 set(LITMUS_BUILD_DIR "${CMAKE_BINARY_DIR}/external/Litmus-build")
 set(LITMUS_CMAKE_DIR "${CMAKE_BINARY_DIR}/external/Litmus-cmake")
 
 IF ((BUILD_Tester_Interpolation AND BUILD_InterpolationMatchPointTransformation) OR (BUILD_Tester_IO AND BUILD_IO_ITK) OR (BUILD_Tester_Apps AND BUILD_App_DoseTool))
 	set(ENABLE_ITK "-DLIT_ENABLE_ITK_SUPPORT:BOOL=ON")
 	set(ITK_DIRECTORY "-DITK_DIR:STRING=${ITK_DIR}")
 ENDIF()
 #extract and build Litmus
 ExternalProject_Add(
 	Litmus
 	URL ${RTToolbox_SOURCE_DIR}/utilities/Litmus/Litmus.tar.gz
+	URL_HASH SHA1=ca064c95e44b84542966523b4a3814554af30b49
 	SOURCE_DIR ${LITMUS_SOURCE_DIR}
 	BINARY_DIR ${LITMUS_BUILD_DIR}
 	PREFIX ${LITMUS_CMAKE_DIR}
 	INSTALL_COMMAND ""
 	UPDATE_COMMAND "" # Don't update SVN on every build
 	CMAKE_ARGS 
 		-DBUILD_TESTING:BOOL=OFF
 		${ENABLE_ITK}
 		${ITK_DIRECTORY}
 )
 
 #-----------------------------------------------------------------------------
 # Configure Testing branch
 #-----------------------------------------------------------------------------
 MAKE_DIRECTORY(${RTTBTesting_BINARY_DIR}/Temporary)
 
 OPTION(BUILD_Tester_All "All testing modules will be built" OFF)
 
 MESSAGE(STATUS "Process All Tests...")
 
 #-----------------------------------------------------------------------------
 # Include sub directories
 #-----------------------------------------------------------------------------
 OPTION(BUILD_Tester_Core "build project on/off" OFF)
 OPTION(BUILD_Tester_Examples "build project on/off" OFF)
 OPTION(BUILD_Tester_Algorithms "build project on/off" OFF)
 OPTION(BUILD_Tester_Models "build project on/off" OFF)
 OPTION(BUILD_Tester_IO "build project on/off" OFF)
 OPTION(BUILD_Tester_Masks "build project on/off" OFF)
 OPTION(BUILD_Tester_Interpolation "build project on/off" OFF)
 OPTION(BUILD_Tester_Apps "build project on/off" OFF)
 OPTION(BUILD_Tester_Validation "build project on/off" OFF)
 
 IF(BUILD_Tester_All OR BUILD_Tester_Core)
 	ADD_SUBDIRECTORY(core)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_Examples)
 	ADD_SUBDIRECTORY(examples)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_Algorithms)
 	ADD_SUBDIRECTORY(algorithms)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_Models)
 	ADD_SUBDIRECTORY(models)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_IO)
 	ADD_SUBDIRECTORY(io)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_Masks)
 	ADD_SUBDIRECTORY(masks)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_Interpolation)
 	ADD_SUBDIRECTORY(interpolation)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_Validation)
 	ADD_SUBDIRECTORY(validation)
 ENDIF()
 
 IF(BUILD_Tester_All OR BUILD_Tester_Apps)
 	ADD_SUBDIRECTORY(apps)
 ENDIF()