diff --git a/pupy/external/winpty b/pupy/external/winpty
index a19853fe..0520a563 160000
--- a/pupy/external/winpty
+++ b/pupy/external/winpty
@@ -1 +1 @@
-Subproject commit a19853fe64c0c7af6b719154cd3075da9d473686
+Subproject commit 0520a563431b78061e33acf79d6dfa0aaa6a061b