diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 790148c19..37f0ad938 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -85,7 +85,7 @@ jobs:
       - name: Run tests
         run: poetry run pytest --cache-clear tests
 
-  comment-coverage:
+  coverage:
     if: github.event.pull_request
     runs-on: ubuntu-latest
     steps:
@@ -103,6 +103,6 @@ jobs:
       - name: Install project and its dependencies
         run: poetry install
       - name: Build coverage file
-        run: poetry run pytest --cache-clear --cov=krux tests > pytest-coverage.txt
-      - name: Comment coverage
-        uses: coroo/pytest-coverage-commentator@v1.0.2
+        run: poetry run pytest --cache-clear --cov --cov-report xml tests
+      - name: Upload coverage reports to Codecov with GitHub Action
+        uses: codecov/codecov-action@v2
\ No newline at end of file
diff --git a/README.md b/README.md
index 56c6130bb..2b0b2e720 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@
       ██  ██   ██       ██    ██    ██  ██
       ██   ██  ██        ██████   ██      ██
 
+[![codecov](https://codecov.io/gh/jreesun/krux/branch/main/graph/badge.svg)](https://codecov.io/gh/jreesun/krux)
+
 Krux is an open-source DIY hardware signer for Bitcoin that can sign for multisignature and single-key wallets. It is a low-cost airgapped device built from off-the-shelf parts that communicates with wallet software via QR codes and wipes its memory after every session.
 
 ---