diff --git a/configure.py b/configure.py
index <HASH>..<HASH> 100755
--- a/configure.py
+++ b/configure.py
@@ -351,7 +351,7 @@ else:
     except:
         pass
     if platform.is_mingw():
-        cflags += ['-D_WIN32_WINNT=0x0501']
+        cflags += ['-D_WIN32_WINNT=0x0601']
     ldflags = ['-L$builddir']
     if platform.uses_usr_local():
         cflags.append('-I/usr/local/include')
Update WIN<I>_WINNT from 0x<I> (Windows XP) to 0x<I> (Windows 7) to support processor-group Windows API