diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 81c03f07f2..17402e062b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -188,10 +188,12 @@ jobs:
           vendor/bin/pcov clobber && \
           php -dpcov.enabled=1 -dpcov.directory=. -dpcov.exclude="~vendor~" vendor/bin/phpunit -c tests/phpunit.xml tests/PHPStan
 
-      - name: "Codecov.io"
+      - name: "Coveralls"
         env:
-          CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
-        run: "bash <(curl -s https://codecov.io/bash) -f tests/tmp/clover.xml"
+          COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+           composer require twinh/php-coveralls --dev && \
+           vendor/bin/php-coveralls --verbose --coverage_clover=tests/tmp/clover.xml --json_path=tests/tmp/coveralls-upload.json
 
   static-analysis:
     name: "PHPStan"
diff --git a/README.md b/README.md
index c8b0e3acbb..86636206c2 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![Build Status](https://travis-ci.com/phpstan/phpstan-src.svg?branch=master)](https://travis-ci.com/phpstan/phpstan-src)
 [![Build](https://github.com/phpstan/phpstan-src/workflows/Build/badge.svg)](https://github.com/phpstan/phpstan-src/actions)
+[![Coverage Status](https://coveralls.io/repos/github/phpstan/phpstan-src/badge.svg)](https://coveralls.io/github/phpstan/phpstan-src)
 [![PHPStan Enabled](https://img.shields.io/badge/PHPStan-enabled-brightgreen.svg?style=flat)](https://github.com/phpstan/phpstan)
 
 ---
diff --git a/codecov.yml b/codecov.yml
deleted file mode 100644
index 642803cbcd..0000000000
--- a/codecov.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-comment: false
-coverage:
-  status:
-    patch: off