diff --git a/.appveyor.yml b/.appveyor.yml
index f11b89f7c8cc0037985b77b6d71700291de704db..198c894e43e3ab8e0849a2522e66460494dc7506 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -14,28 +14,28 @@ environment:
 
 install:
   - git submodule update --init --recursive
-  - call "%ProgramFiles(x86)%\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
-  - set PATH=C:\Qt\Tools\QtCreator\bin;C:\Qt\5.11\msvc2015\bin;%PATH%
+  - call "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" amd64
+  - set PATH=C:\Qt\Tools\QtCreator\bin;C:\Qt\5.12.5\msvc2017_64\bin;%PATH%
   - mkdir %LOCALAPPDATA%\QtProject && copy test\qtlogging.ini %LOCALAPPDATA%\QtProject\
   - ps: |
       Write-Host "Installing GStreamer..." -ForegroundColor Cyan
-      $msiPath = "$($env:USERPROFILE)\gstreamer-1.0-x86-1.14.4.msi"
+      $msiPath = "$($env:USERPROFILE)\gstreamer-1.0-x86_64-1.14.4.msi"
       Write-Host "Downloading..."
-      (New-Object Net.WebClient).DownloadFile('https://s3-us-west-2.amazonaws.com/qgroundcontrol/dependencies/gstreamer-1.0-x86-1.14.4.msi', $msiPath)
+      (New-Object Net.WebClient).DownloadFile('https://s3-us-west-2.amazonaws.com/qgroundcontrol/dependencies/gstreamer-1.0-x86_64-1.14.4.msi', $msiPath)
       Write-Host "Installing..."
       cmd /c start /wait msiexec /package $msiPath /passive ADDLOCAL=ALL
       Write-Host "Installed" -ForegroundColor Green
   - ps: |
       Write-Host "Installing GStreamer dev..." -ForegroundColor Cyan
-      $msiPath = "$($env:USERPROFILE)\gstreamer-1.0-devel-x86-1.14.4.msi"
+      $msiPath = "$($env:USERPROFILE)\gstreamer-1.0-devel-x86_64-1.14.4.msi"
       Write-Host "Downloading..."
-      (New-Object Net.WebClient).DownloadFile('https://s3-us-west-2.amazonaws.com/qgroundcontrol/dependencies/gstreamer-1.0-devel-x86-1.14.4.msi', $msiPath)
+      (New-Object Net.WebClient).DownloadFile('https://s3-us-west-2.amazonaws.com/qgroundcontrol/dependencies/gstreamer-1.0-devel-x86_64-1.14.4.msi', $msiPath)
       Write-Host "Installing..."
       cmd /c start /wait msiexec /package $msiPath /passive ADDLOCAL=ALL
       Write-Host "Installed" -ForegroundColor Green
 
 build_script:
-  - mkdir %SHADOW_BUILD_DIR% && cd %SHADOW_BUILD_DIR% && C:\Qt\5.11\msvc2015\bin\qmake -r CONFIG-=debug_and_release CONFIG+=%CONFIG% CONFIG+=WarningsAsErrorsOn %APPVEYOR_BUILD_FOLDER%\qgroundcontrol.pro
+  - mkdir %SHADOW_BUILD_DIR% && cd %SHADOW_BUILD_DIR% && C:\Qt\5.12.5\msvc2017_64\bin\qmake -r CONFIG+=%CONFIG% CONFIG+=WarningsAsErrorsOn %APPVEYOR_BUILD_FOLDER%\qgroundcontrol.pro
   - cd %SHADOW_BUILD_DIR% && jom
   - if "%CONFIG%" EQU "installer" ( copy %SHADOW_BUILD_DIR%\release\QGroundControl-installer.exe %APPVEYOR_BUILD_FOLDER%\QGroundControl-installer.exe )
 # Generate the source server information to embed in the PDB