diff --git a/.github/workflows/setup.yaml b/.github/workflows/setup.yaml
index 039fdc8..b9e73ab 100644
--- a/.github/workflows/setup.yaml
+++ b/.github/workflows/setup.yaml
@@ -10,7 +10,7 @@ jobs:
     name: Initialise OpenSAFELY project.
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Update README.md and remove action
         shell: bash
         run: |
diff --git a/.github/workflows/test_runner.yaml b/.github/workflows/test_runner.yaml
index 63450c3..c8f90b4 100644
--- a/.github/workflows/test_runner.yaml
+++ b/.github/workflows/test_runner.yaml
@@ -12,6 +12,6 @@ jobs:
     name: Test the project can run, using dummy data
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Test that the project is runnable
       uses: opensafely-core/research-action@v2