diff --git a/.github/workflows/build-project.yml b/.github/workflows/build-project.yml
index 46f1feb7..436c56c8 100644
--- a/.github/workflows/build-project.yml
+++ b/.github/workflows/build-project.yml
@@ -20,6 +20,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+            ref: ls-leave-prototype
           
       - name: Set up Python 3.9
         uses: actions/setup-python@v2
@@ -132,6 +134,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+            ref: ls-leave-prototype
           
       - name: Set up Python 3.9
         uses: actions/setup-python@v2