diff --git a/external/mono b/external/mono
index 4d41b0560f..e257971d3c 160000
--- a/external/mono
+++ b/external/mono
@@ -1 +1 @@
-Subproject commit 4d41b0560ffdd68aa78bda2a4e9042643a227f18
+Subproject commit e257971d3c89ba4a054514d83ea84eb2bcb7ad69