diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index 4df3865..41cd212 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -42,6 +42,7 @@ jobs:
     - name: Run unit tests
       run: |
         coverage run tests.py
+        coverage json
     - name: Test sample DMARC reports
       continue-on-error: true
       run: |