diff --git a/fast-pysf b/fast-pysf
index 1577d4c..1b3caf0 160000
--- a/fast-pysf
+++ b/fast-pysf
@@ -1 +1 @@
-Subproject commit 1577d4c9ea7976b90e0b10abda41e7fe596ac7f0
+Subproject commit 1b3caf09ffe37784ef894f0530f715a39caea66e