diff --git a/fast_change_detection b/fast_change_detection
index 4e94b62..e9a509f 160000
--- a/fast_change_detection
+++ b/fast_change_detection
@@ -1 +1 @@
-Subproject commit 4e94b627c27b44eae6d67432b76aec3efe9523c8
+Subproject commit e9a509f749c297fe5a546ad0753552f3d485a173