diff --git a/.github/workflows/check_and_deploy.yml b/.github/workflows/check_and_deploy.yml
index 7043cc0..a640d3e 100644
--- a/.github/workflows/check_and_deploy.yml
+++ b/.github/workflows/check_and_deploy.yml
@@ -45,7 +45,11 @@ jobs:
         run: |
           set +e
           mkdir summary > /dev/null 2>&1 || echo
-          pytest --cov=python_ci_base --cov-report=markdown-append:summary/coverage.md --markdown-summary-file=summary/summary.md
+          
+          touch summary/summary.md
+          coverage run -m pytest tests --markdown-summary-file=summary/summary.md
+          coverage report --format=markdown > summary/coverage.md
+          
           EXIT_CODE=$?
           
           set -e
@@ -56,7 +60,7 @@ jobs:
             echo -e "\n# Coverage\n" >> $GITHUB_STEP_SUMMARY
           elif (( $EXIT_CODE == 0 )); then
             echo -e "# Summary\n" >> $GITHUB_STEP_SUMMARY
-            cat summary/summary.md >> $GITHUB_STEP_SUMMARY
+            [ -f summary/summary.md] && cat summary/summary.md >> $GITHUB_STEP_SUMMARY
             echo -e "\n# Coverage\n" >> $GITHUB_STEP_SUMMARY
             cat summary/coverage.md >> $GITHUB_STEP_SUMMARY
           else
diff --git a/pyproject.toml b/pyproject.toml
index 47dcb9d..3209a1e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,6 +62,13 @@ packages = ["python_ci_base"]
 # configurations for setuptools-scm. This section is required for the project to be built correctly
 [tool.setuptools_scm]
 
+[tool.coverage.run]
+# TODO: replace "python_ci_base"
+source = ["python_ci_base"]
+omit = [
+    "tests/*"
+]
+
 # TODO: You can provide the entry points into your app, here
 # [project.scripts]
 # app = "python_ci_base.app:main"