diff --git a/include/uv-win.h b/include/uv-win.h
index b96bed22..4c6c50a2 100644
--- a/include/uv-win.h
+++ b/include/uv-win.h
@@ -20,7 +20,7 @@
  */
 
 #ifndef _WIN32_WINNT
-# define _WIN32_WINNT   0x0502
+# define _WIN32_WINNT   0x0600
 #endif
 
 #if !defined(_SSIZE_T_) && !defined(_SSIZE_T_DEFINED)