diff --git a/sims/firesim b/sims/firesim
index a4f0a18c..b1ff973a 160000
--- a/sims/firesim
+++ b/sims/firesim
@@ -1 +1 @@
-Subproject commit a4f0a18c0aa1690a57dd888be6bc48f52fbc074c
+Subproject commit b1ff973a2541f58c30d99ed170bd30527c216414