diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3ba0e50..dca1f85 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,3 +29,11 @@ jobs:
       -
         name: Test
         run: npm run test
+      -
+        # https://github.com/codecov/codecov-action
+        name: Upload coverage
+        uses: codecov/codecov-action@v1
+        if: success()
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./coverage/clover.xml
diff --git a/README.md b/README.md
index f7ef77b..f9ea1ed 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,8 @@
   <p align="center">
     <a href="https://github.com/goreleaser/goreleaser-action/releases/latest"><img alt="GitHub release" src="https://img.shields.io/github/release/goreleaser/goreleaser-action.svg?logo=github&style=flat-square"></a>
     <a href="https://github.com/marketplace/actions/goreleaser-action"><img alt="GitHub marketplace" src="https://img.shields.io/badge/marketplace-goreleaser--action-blue?logo=github&style=flat-square"></a>
-    <a href="https://github.com/goreleaser/goreleaser-action/actions?workflow=test"><img alt="Test workflow" src="https://github.com/goreleaser/goreleaser-action/workflows/test/badge.svg"></a>
+    <a href="https://github.com/goreleaser/goreleaser-action/actions?workflow=test"><img alt="Test workflow" src="https://img.shields.io/github/workflow/status/goreleaser/goreleaser-action/test?label=test&logo=github&style=flat-square"></a>
+    <a href="https://codecov.io/gh/goreleaser/goreleaser-action"><img alt="Codecov" src="https://img.shields.io/codecov/c/github/goreleaser/goreleaser-action?logo=codecov&style=flat-square"></a>
     <a href="https://github.com/sponsors/crazy-max"><img src="https://img.shields.io/badge/sponsor-crazy--max-181717.svg?logo=github&style=flat-square" alt="Become a sponsor"></a>
   </p>
 </p>
diff --git a/tsconfig.json b/tsconfig.json
index 4351241..5bc2fba 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -10,7 +10,8 @@
     "rootDir": "./src",
     "strict": true,
     "noImplicitAny": false,
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "sourceMap": true
   },
   "exclude": ["node_modules", "**/*.test.ts"]
 }