diff --git a/.github/workflows/codecoverage.yml b/.github/workflows/codecoverage.yml
index 185aa04..e010dbf 100644
--- a/.github/workflows/codecoverage.yml
+++ b/.github/workflows/codecoverage.yml
@@ -1,10 +1,11 @@
 ---
-# This GitHub Actions workflow is calculating code coverage of extension and creates a badge for it.
+# This GitHub Actions workflow calculates the code coverage of the extension and uploads it to coveralls.io.
 name: Code coverage
 on:
   push:
     branches:
       - main
+  pull_request:
 jobs:
   code-coverage:
     name: "Calculate code coverage"
@@ -56,18 +57,10 @@ jobs:
           composer ci:coverage:functional
       - name: "Merge coverage results"
         run: composer ci:coverage:merge
-      - name: "Generate coverage badge"
-        uses: timkrase/phpunit-coverage-badge@v1.2.0
-        with:
-          report: './build/logs/clover.xml'
-          coverage_badge_path: './coverage/badge.svg'
-      - name: "Commit PHPUnit coverage results"
-        uses: s0/git-publish-subdir-action@develop
+      - name: "Upload coverage results to Coveralls"
         env:
-          REPO: self
-          BRANCH: code-coverage-badge
-          FOLDER: coverage
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: ./.Build/vendor/bin/php-coveralls --coverage_clover=build/logs/clover.xml -v
     strategy:
       fail-fast: false
       matrix:
diff --git a/.gitignore b/.gitignore
index 2ac8f60..53ad3a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,6 +7,7 @@
 /Resources/Private/package-lock.json
 /Resources/Private/yarn-error.log
 /Resources/Private/yarn.lock
+/build
 /clover.xml
 /composer.lock
 /nbproject
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f3a9ea..f90128d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 ## x.y.z
 
 ### Added
+- Use Coveralls for the code coverage (#425)
 
 ### Changed
 - Use the TYPO3 Code of Conduct (#430)
diff --git a/README.md b/README.md
index 11a1a27..9fa84d5 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 [![TYPO3 V11](https://img.shields.io/badge/TYPO3-11-orange.svg)](https://get.typo3.org/version/11)
 [![GitHub CI status](https://github.com/TYPO3-Documentation/tea/workflows/CI/badge.svg?branch=main)](https://github.com/TYPO3-Documentation/tea/actions)
 [![GitLab CI status](https://gitlab.typo3.org/qa/example-extension/badges/main/pipeline.svg)](https://gitlab.typo3.org/qa/example-extension/-/pipelines)
-[![Code Coverage Badge](https://github.com/TYPO3-Documentation/tea/blob/code-coverage-badge/badge.svg)](https://github.com/TYPO3-Documentation/tea/blob/code-coverage-badge/clover.xml)
+[![Coverage Status](https://coveralls.io/repos/github/TYPO3-Documentation/tea/badge.svg?branch=main)](https://coveralls.io/github/TYPO3-Documentation/tea?branch=main)
 [![Total downloads](https://poser.pugx.org/ttn/tea/downloads.svg)](https://packagist.org/packages/ttn/tea)
 [![License](https://poser.pugx.org/ttn/tea/license.svg)](https://packagist.org/packages/ttn/tea)
 [![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.0-4baaaa.svg)](CODE_OF_CONDUCT.md)
diff --git a/composer.json b/composer.json
index d4760b3..a93ec69 100644
--- a/composer.json
+++ b/composer.json
@@ -40,6 +40,7 @@
 		"friendsofphp/php-cs-fixer": "^3.4.0",
 		"helmich/typo3-typoscript-lint": "^2.5.2",
 		"jangregor/phpstan-prophecy": "^1.0.0",
+		"php-coveralls/php-coveralls": "^2.5.2",
 		"phpstan/extension-installer": "^1.1.0",
 		"phpstan/phpstan": "^1.4.9",
 		"phpstan/phpstan-phpunit": "^1.0.0",