diff --git a/.github/workflows/regression.yml b/.github/workflows/regression.yml
index c28980af..e448fbe0 100644
--- a/.github/workflows/regression.yml
+++ b/.github/workflows/regression.yml
@@ -19,6 +19,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+        with:
+          submodules: 'true'
       - name: Set Build Variables
         id: vars
         run: |