diff --git a/firrtl b/firrtl
index 4613ad2b..f8572ba6 160000
--- a/firrtl
+++ b/firrtl
@@ -1 +1 @@
-Subproject commit 4613ad2b519ae85fbab89e58d3304cf455514552
+Subproject commit f8572ba6532359e8a0f1bc34f3eb8241a29129ab