diff --git a/.coveragerc b/.coveragerc
index ee6ec14..76f2838 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -3,6 +3,13 @@
 
 [run]
 branch = True
-source = spreadflow_delta
+source_pkgs =
+    spreadflow_delta
 omit =
-    spreadflow_delta/test/*
+    /tmp/**
+    spreadflow_delta/test/**
+
+[report]
+omit =
+    /tmp/**
+    spreadflow_delta/test/**
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index d255cd7..78a7e9a 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -29,8 +29,7 @@ jobs:
         python -m pip install --editable .[tests]
     - name: Test with trial
       run: |
-        COVERAGE_PROCESS_START=`pwd`/.coveragerc trial spreadflow_delta
-        coverage combine `pwd` `pwd`/_trial_temp
+        coverage run `which trial` spreadflow_delta
         coverage xml
     - name: Coveralls Parallel
       uses: coverallsapp/github-action@v2