diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 878412a9..8e68ea79 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -17,6 +17,8 @@ jobs:
     steps:
       - name: Check out the codebase
         uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # 3.0.2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
         uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984 # 4.3.0
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 285eab8c..96a5bad9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,6 +25,8 @@ jobs:
     steps:
       - name: Check out the codebase
         uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # 3.0.2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Configure VirtualBox
         run: |-