diff --git a/ports/qt5-base/CONTROL b/ports/qt5-base/CONTROL
index 3bd6fc58fae..96cad8f54a4 100644
--- a/ports/qt5-base/CONTROL
+++ b/ports/qt5-base/CONTROL
@@ -1,5 +1,5 @@
 Source: qt5-base
-Version: 5.12.8
+Version: 5.12.8-2
 Homepage: https://www.qt.io/
 Description: Qt5 Application Framework Base Module. Includes Core, GUI, Widgets, Networking, SQL, Concurrent and other essential qt components.
 Build-Depends: zlib, libjpeg-turbo, libpng, freetype, pcre2, harfbuzz, sqlite3, libpq, double-conversion, openssl, angle (!windows), egl-registry, icu (!uwp), fontconfig (!windows)
diff --git a/ports/qt5-base/cmake/install_qt.cmake b/ports/qt5-base/cmake/install_qt.cmake
index 9f9b3ea2a9c..a188138f499 100644
--- a/ports/qt5-base/cmake/install_qt.cmake
+++ b/ports/qt5-base/cmake/install_qt.cmake
@@ -1,38 +1,12 @@
 include(qt_fix_makefile_install)
 
 function(install_qt)
-    cmake_parse_arguments(_bc "DISABLE_PARALLEL" "" "" ${ARGN})
-
-    if (_bc_DISABLE_PARALLEL)
-        set(NUMBER_OF_PROCESSORS "1")
-    else()
-        if(DEFINED ENV{NUMBER_OF_PROCESSORS})
-            set(NUMBER_OF_PROCESSORS $ENV{NUMBER_OF_PROCESSORS})
-        elseif(VCPKG_TARGET_IS_OSX)
-            execute_process(
-                COMMAND sysctl -n hw.ncpu
-                OUTPUT_VARIABLE NUMBER_OF_PROCESSORS
-            )
-            string(REPLACE "\n" "" NUMBER_OF_PROCESSORS "${NUMBER_OF_PROCESSORS}")
-            string(REPLACE " " "" NUMBER_OF_PROCESSORS "${NUMBER_OF_PROCESSORS}")
-        else()
-            execute_process(
-                COMMAND nproc
-                OUTPUT_VARIABLE NUMBER_OF_PROCESSORS
-            )
-            string(REPLACE "\n" "" NUMBER_OF_PROCESSORS "${NUMBER_OF_PROCESSORS}")
-            string(REPLACE " " "" NUMBER_OF_PROCESSORS "${NUMBER_OF_PROCESSORS}")
-        endif()
-    endif()
-
-    message(STATUS "NUMBER_OF_PROCESSORS is ${NUMBER_OF_PROCESSORS}")
-
     if(CMAKE_HOST_WIN32)
         vcpkg_find_acquire_program(JOM)
-        set(INVOKE "${JOM}" /J ${NUMBER_OF_PROCESSORS})
+        set(INVOKE "${JOM}" /J ${VCPKG_CONCURRENCY})
     else()
         find_program(MAKE make)
-        set(INVOKE "${MAKE}" -j${NUMBER_OF_PROCESSORS})
+        set(INVOKE "${MAKE}" -j${VCPKG_CONCURRENCY})
         set(INVOKE_SINGLE "${MAKE}" -j1)
     endif()
     vcpkg_find_acquire_program(PYTHON3)
@@ -71,10 +45,10 @@ function(install_qt)
         set(_build_type_${_buildname} "release")
     endif()
     unset(_buildname)
-    
+
     foreach(_buildname ${BUILDTYPES})
         set(_build_triplet ${TARGET_TRIPLET}-${_short_name_${_buildname}})
-        
+
         vcpkg_add_to_path(PREPEND "${CURRENT_INSTALLED_DIR}${_path_suffix_${_buildname}}/bin")
 
         if(VCPKG_TARGET_IS_OSX)
@@ -86,14 +60,14 @@ function(install_qt)
                 LOGNAME cleaning-1-${_build_triplet}
             )
         endif()
-        
+
         message(STATUS "Building ${_build_triplet}")
         vcpkg_execute_required_process(
             COMMAND ${INVOKE}
             WORKING_DIRECTORY ${CURRENT_BUILDTREES_DIR}/${_build_triplet}
             LOGNAME build-${_build_triplet}
         )
-        
+
         if(VCPKG_TARGET_IS_OSX)
            # For some reason there will be an error on MacOSX without this clean!
             message(STATUS "Cleaning after build before install ${_build_triplet}")
@@ -103,7 +77,7 @@ function(install_qt)
                 LOGNAME cleaning-2-${_build_triplet}
             )
         endif()
-        
+
         message(STATUS "Fixing makefile installation path ${_build_triplet}")
         qt_fix_makefile_install("${CURRENT_BUILDTREES_DIR}/${_build_triplet}")
         message(STATUS "Installing ${_build_triplet}")
@@ -115,7 +89,4 @@ function(install_qt)
         message(STATUS "Package ${_build_triplet} done")
         set(ENV{PATH} "${_path}")
     endforeach()
-    
-
-    
 endfunction()
diff --git a/scripts/cmake/vcpkg_build_qmake.cmake b/scripts/cmake/vcpkg_build_qmake.cmake
index ef6fb30f3ec..6f3c871de56 100644
--- a/scripts/cmake/vcpkg_build_qmake.cmake
+++ b/scripts/cmake/vcpkg_build_qmake.cmake
@@ -6,7 +6,6 @@
 #  ::
 #  vcpkg_build_qmake()
 #
-
 function(vcpkg_build_qmake)
     cmake_parse_arguments(_csc "SKIP_MAKEFILES" "BUILD_LOGNAME" "TARGETS;RELEASE_TARGETS;DEBUG_TARGETS" ${ARGN})
 
@@ -18,9 +17,9 @@ function(vcpkg_build_qmake)
         set(INVOKE "${MAKE}")
     endif()
 
-    # Make sure that the linker finds the libraries used 
+    # Make sure that the linker finds the libraries used
     set(ENV_PATH_BACKUP "$ENV{PATH}")
-    
+
     file(TO_NATIVE_PATH "${CURRENT_INSTALLED_DIR}" NATIVE_INSTALLED_DIR)
 
     if(NOT _csc_BUILD_LOGNAME)
@@ -30,7 +29,7 @@ function(vcpkg_build_qmake)
     function(run_jom TARGETS LOG_PREFIX LOG_SUFFIX)
         message(STATUS "Package ${LOG_PREFIX}-${TARGET_TRIPLET}-${LOG_SUFFIX}")
         vcpkg_execute_required_process(
-            COMMAND ${INVOKE} ${TARGETS}
+            COMMAND ${INVOKE} -j ${VCPKG_CONCURRENCY} ${TARGETS}
             WORKING_DIRECTORY ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-${LOG_SUFFIX}
             LOGNAME package-${LOG_PREFIX}-${TARGET_TRIPLET}-${LOG_SUFFIX}
         )
@@ -46,16 +45,16 @@ function(vcpkg_build_qmake)
         set(_buildname "DEBUG")
         list(APPEND BUILDTYPES ${_buildname})
         set(_short_name_${_buildname} "dbg")
-        set(_path_suffix_${_buildname} "/debug")        
+        set(_path_suffix_${_buildname} "/debug")
     endif()
     if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
         set(_buildname "RELEASE")
         list(APPEND BUILDTYPES ${_buildname})
         set(_short_name_${_buildname} "rel")
-        set(_path_suffix_${_buildname} "")        
+        set(_path_suffix_${_buildname} "")
     endif()
     unset(_buildname)
-    
+
     foreach(_buildname ${BUILDTYPES})
         set(_BUILD_PREFIX "${_path_suffix_${_buildname}}")
         vcpkg_add_to_path(PREPEND "${CURRENT_INSTALLED_DIR}${_BUILD_PREFIX}/bin")
@@ -67,7 +66,7 @@ function(vcpkg_build_qmake)
         run_jom("${_csc_${_buildname}_TARGETS}" ${_csc_BUILD_LOGNAME} ${_short_name_${_buildname}})
         unset(_BUILD_PREFIX)
     endforeach()
-      
+
     # Restore the original value of ENV{PATH}
     set(ENV{PATH} "${ENV_PATH_BACKUP}")
     set(ENV{_CL_} "${ENV_CL_BACKUP}")