diff --git a/.github/workflows/ci-reusable.yml b/.github/workflows/ci-reusable.yml
index 501468a0..b83757d1 100644
--- a/.github/workflows/ci-reusable.yml
+++ b/.github/workflows/ci-reusable.yml
@@ -32,6 +32,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: recursive
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Setup Nimbus Build System
         uses: ./.github/actions/nimbus-build-system
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fdf95ae3..fb79c510 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,6 +48,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: recursive
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: Setup Nimbus Build System
         uses: ./.github/actions/nimbus-build-system