diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 84f1a18..89823ab 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,6 +13,13 @@ jobs:
         run: make dev-install
       - name: Run tests
         run: make test
+      - name: Report
+        uses: 5monkeys/cobertura-action@master
+        with:
+          path: coverage.xml
+          minimum_coverage: 90
+          skip_covered: false
+          fail_below_threshold: true
 
   check:
     runs-on: ubuntu-20.04
diff --git a/.gitignore b/.gitignore
index db4bf50..8b67632 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,6 +33,7 @@ MANIFEST
 /.hypothesis
 /.coverage
 /.coverage.*
+/coverage.xml
 
 # user makefile config
 /Makefile.conf
diff --git a/Makefile b/Makefile
index a7d1b45..2b2d124 100644
--- a/Makefile
+++ b/Makefile
@@ -46,7 +46,7 @@ docs-%:
 
 test:
 	$(PYTHON) -m pytest \
-		--cov-report html --cov-report term \
+		--cov-report html --cov-report xml:coverage.xml --cov-report term \
 		--cov yosys_mau \
 		-n auto -q $(O)
 
@@ -71,4 +71,4 @@ dev-install:
 ci: formatting lint typecheck test docs-html
 
 clean: docs-clean
-	rm -rf .coverage .pytest_cache .mypy_cache .ruff_cache htmlcov
+	rm -rf .coverage .pytest_cache .mypy_cache .ruff_cache htmlcov coverage.xml