diff --git a/.github/actions/prepare-rtl/action.yml b/.github/actions/prepare-rtl/action.yml
index 74a04037..b4abde09 100644
--- a/.github/actions/prepare-rtl/action.yml
+++ b/.github/actions/prepare-rtl/action.yml
@@ -26,6 +26,7 @@ runs:
       with:
         path: |
           sims/verilator
+          sims/vcs
           sims/firesim/sim
           generators/gemmini/software/gemmini-rocc-tests
         key: ${{ inputs.group-key }}-${{ github.sha }}
diff --git a/.github/scripts/defaults.sh b/.github/scripts/defaults.sh
index 1028960e..4f4fbaad 100755
--- a/.github/scripts/defaults.sh
+++ b/.github/scripts/defaults.sh
@@ -11,13 +11,13 @@ REMOTE_MAKE_NPROC=4
 REMOTE_PREFIX=$CI_DIR/${GITHUB_REPOSITORY#*/}-${GITHUB_REF_NAME//\//-}
 REMOTE_WORK_DIR=$GITHUB_WORKSPACE
 REMOTE_CHIPYARD_DIR=$GITHUB_WORKSPACE
-REMOTE_SIM_DIR=$REMOTE_CHIPYARD_DIR/sims/verilator
+REMOTE_SIM_DIR=$REMOTE_CHIPYARD_DIR/sims/vcs
 REMOTE_FIRESIM_DIR=$REMOTE_CHIPYARD_DIR/sims/firesim/sim
 REMOTE_FPGA_DIR=$REMOTE_CHIPYARD_DIR/fpga
 
 # local variables (aka within the docker container)
 LOCAL_CHIPYARD_DIR=$GITHUB_WORKSPACE
-LOCAL_SIM_DIR=$LOCAL_CHIPYARD_DIR/sims/verilator
+LOCAL_SIM_DIR=$LOCAL_CHIPYARD_DIR/sims/vcs
 LOCAL_FIRESIM_DIR=$LOCAL_CHIPYARD_DIR/sims/firesim/sim
 
 # CI uses temp directories with very long names