diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index ac7e0c5..86d205d 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -35,6 +35,11 @@ jobs:
         run: |
           . venv/bin/activate
           pytest
+      - name: Upload coverage to Codecov
+          uses: codecov/codecov-action@v1
+          with:
+            file: ./coverage.xml
+            fail_ci_if_error: true
 
   lint:
     name: black
diff --git a/README.rst b/README.rst
index 6c96e18..82596f0 100644
--- a/README.rst
+++ b/README.rst
@@ -6,6 +6,9 @@ A simple Python wrapper around for Twitter API v2 :sparkles: :cake: :sparkles:.
     :target: https://github.com/sns-sdks/python-facebook/actions
     :alt: Build Status
 
+.. image:: https://codecov.io/gh/sns-sdks/python-twitter/branch/master/graph/badge.svg
+    :target: https://codecov.io/gh/sns-sdks/python-facebook
+    :alt: Codecov
 
 ============
 Introduction
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..1456db3
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,2 @@
+[pytest]
+addopts = --cov=pytwitter --cov-report xml
\ No newline at end of file