diff --git a/support/build.py b/support/build.py
index 83eb27cc..968ef0ee 100755
--- a/support/build.py
+++ b/support/build.py
@@ -11,7 +11,7 @@ build_command = ['msbuild', '/m:4', '/p:Config=' + os.environ['CONFIG'], 'FORMAT
 test_command = ['msbuild', 'RUN_TESTS.vcxproj']
 if build == 'mingw':
   # Install MinGW.
-  mingw_url = 'http://downloads.sourceforge.net/project/mingw-w64/' + \
+  mingw_url = 'http://ufpr.dl.sourceforge.net/project/mingw-w64/' + \
     'Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/' + \
     '4.9.2/threads-win32/seh/x86_64-4.9.2-release-win32-seh-rt_v3-rev1.7z'
   with Downloader().download(mingw_url) as f: