diff --git a/buildconfig/CMake/Bootstrap.cmake b/buildconfig/CMake/Bootstrap.cmake
index 1fda0d665ace20935775320f68fc7723e29b49e2..7040f71e3fbd9b60eac71053416e067796149808 100644
--- a/buildconfig/CMake/Bootstrap.cmake
+++ b/buildconfig/CMake/Bootstrap.cmake
@@ -10,7 +10,7 @@ if( MSVC )
   include ( ExternalProject )
   set( EXTERNAL_ROOT ${PROJECT_SOURCE_DIR}/external CACHE PATH "Location to clone third party dependencies to" )
   set( THIRD_PARTY_GIT_URL "https://github.com/mantidproject/thirdparty-msvc2015.git" )
-  set ( THIRD_PARTY_GIT_SHA1 85d085a4ca4e0813aff753c7b14c84cd50675897 )
+  set ( THIRD_PARTY_GIT_SHA1 aa4f7615564fb9c73dbfce40d24330a955ffcfd4 )
   set ( THIRD_PARTY_DIR ${EXTERNAL_ROOT}/src/ThirdParty )
   # Generates a script to do the clone/update in tmp
   set ( _project_name ThirdParty )