diff --git a/buildconfig/CMake/Bootstrap.cmake b/buildconfig/CMake/Bootstrap.cmake
index 47c9630020545d81daf9cb97395be4354a0fedfd..ab9c735f06eb74f9144108c1da9ffd9613571f07 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 )
   set( THIRD_PARTY_GIT_URL "https://github.com/mantidproject/thirdparty-msvc2015.git" )
-  set ( THIRD_PARTY_GIT_SHA1 988f1be53a5dbbac30afb5ed11320862d06627aa )
+  set ( THIRD_PARTY_GIT_SHA1 7840de34529487bae95d7995f58dc5adbe71d29a )
   set ( THIRD_PARTY_DIR ${EXTERNAL_ROOT}/src/ThirdParty )
   # Generates a script to do the clone/update in tmp
   set ( _project_name ThirdParty )