diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 9193541d..154ea595 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -24,3 +24,14 @@ jobs:
           pip install -r requirements-developer.txt
       - name: Run Pre commit hook (formatting, linting & tests)
         run: pre-commit run --all-files --hook-stage pre-push --show-diff-on-failure
+
+      - name: Build coverage file
+        run: |
+          pytest --junitxml=pytest.xml --cov-report=term-missing:skip-covered --cov=choice_learn tests/ | tee pytest-coverage.txt
+
+      - name: Pytest coverage comment
+        uses: MishaKav/pytest-coverage-comment@main
+        with:
+          pytest-coverage-path: ./pytest-coverage.txt
+          junitxml-path: ./pytest.xml
+          issue-number: 101
diff --git a/.github/workflows/pr_ci.yaml b/.github/workflows/pr_ci.yaml
index 62af8191..28478308 100644
--- a/.github/workflows/pr_ci.yaml
+++ b/.github/workflows/pr_ci.yaml
@@ -34,3 +34,4 @@ jobs:
         with:
           pytest-coverage-path: ./pytest-coverage.txt
           junitxml-path: ./pytest.xml
+          report-only-changed-files: true
diff --git a/tests/manual_run.py b/tests/manual_run.py
index d927c552..48ef1ae2 100644
--- a/tests/manual_run.py
+++ b/tests/manual_run.py
@@ -1,4 +1,5 @@
 """Runs manually all test_* functions."""
+
 import importlib
 from pathlib import Path