diff --git a/.circleci/do-firesim-build.sh b/.circleci/do-firesim-build.sh
index ecb965b2..5eb42e56 100755
--- a/.circleci/do-firesim-build.sh
+++ b/.circleci/do-firesim-build.sh
@@ -15,7 +15,6 @@ trap clean EXIT
 
 cd $LOCAL_CHIPYARD_DIR
 ./scripts/init-submodules-no-riscv-tools.sh
-cd sims/firesim/sim/midas && git submodule update --init
 
 # set stricthostkeychecking to no (must happen before rsync)
 run "echo \"Ping $SERVER\""
diff --git a/sims/firesim b/sims/firesim
index afad1b6a..c3a4731a 160000
--- a/sims/firesim
+++ b/sims/firesim
@@ -1 +1 @@
-Subproject commit afad1b6accfaba5efbc0cfeea66372abae5ab2eb
+Subproject commit c3a4731a604973d7b2b420a308116e9e3e093dc3
diff --git a/tools/barstools b/tools/barstools
index 26096e07..3bba55cc 160000
--- a/tools/barstools
+++ b/tools/barstools
@@ -1 +1 @@
-Subproject commit 26096e07f6ce3e12b2114132c2859ef56fb0cfaf
+Subproject commit 3bba55ccc89518ddeb3ed78774dd6e68d938c07a