diff --git a/.github/workflows/run_unit_tests_on_pr.yml b/.github/workflows/run_unit_tests_on_pr.yml
index 74487761..f3947def 100644
--- a/.github/workflows/run_unit_tests_on_pr.yml
+++ b/.github/workflows/run_unit_tests_on_pr.yml
@@ -19,6 +19,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
 
       - uses: actions/setup-python@v1
         with:
@@ -47,6 +48,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
 
       - uses: actions/setup-python@v1
         with: