diff --git a/sims/firesim b/sims/firesim
index 1e7f304c..3840b6e7 160000
--- a/sims/firesim
+++ b/sims/firesim
@@ -1 +1 @@
-Subproject commit 1e7f304c49507b46cf77ccf5d21a807db633f35c
+Subproject commit 3840b6e7bfab7ad954d9494cf732cf99e0d86dc2