diff --git a/.appveyor.yml b/.appveyor.yml
index 478febe3..b7b18dcd 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -16,12 +16,6 @@ platform:
 
 environment:
   matrix:
-    - compiler: MinGW
-      configuration: Release
-      build_with: autoconf
-    - compiler: Cygwin
-      configuration: Release
-      build_with: autoconf
     - compiler: MSVC
       configuration: Release
       build_with: cmake
@@ -31,6 +25,12 @@ environment:
     - compiler: MSVC
       configuration: Release Lib
       build_with: msbuild
+    - compiler: MinGW
+      configuration: Release
+      build_with: autoconf
+    - compiler: Cygwin
+      configuration: Release
+      build_with: autoconf
 
 matrix:
   exclude:
@@ -65,9 +65,11 @@ for:
           $env:HDF5_DIR="C:\projects\HDF5-1.8.13-win32"
           $env:sdk_platform_env="x86"
           If ($env:configuration -Match "Lib") {
+            "[Net.ServicePointManager]::SecurityProtocol = 'Tls12'"
             Start-FileDownload 'https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-1.8/hdf5-1.8.13/bin/windows/hdf5-1.8.13-win32-VS2010-static.zip'
             7z x -y hdf5-1.8.13-win32-VS2010-static.zip | FIND "ing archive"
           } Else {
+            "[Net.ServicePointManager]::SecurityProtocol = 'Tls12'"
             Start-FileDownload 'https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-1.8/hdf5-1.8.13/bin/windows/hdf5-1.8.13-win32-VS2010-shared.zip'
             7z x -y hdf5-1.8.13-win32-VS2010-shared.zip | FIND "ing archive"
           }
@@ -76,9 +78,11 @@ for:
           $env:HDF5_DIR="C:\projects\HDF5-1.8.13-win64"
           $env:sdk_platform_env="x64"
           If ($env:configuration -Match "Lib") {
+            "[Net.ServicePointManager]::SecurityProtocol = 'Tls12'"
             Start-FileDownload 'https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-1.8/hdf5-1.8.13/bin/windows/hdf5-1.8.13-win64-VS2010-static.zip'
             7z x -y hdf5-1.8.13-win64-VS2010-static.zip | FIND "ing archive"
           } Else {
+            "[Net.ServicePointManager]::SecurityProtocol = 'Tls12'"
             Start-FileDownload 'https://support.hdfgroup.org/ftp/HDF5/releases/hdf5-1.8/hdf5-1.8.13/bin/windows/hdf5-1.8.13-win64-VS2010-shared.zip'
             7z x -y hdf5-1.8.13-win64-VS2010-shared.zip | FIND "ing archive"
           }