diff --git a/README.md b/README.md
index b48ebc5..d336e38 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.org/infection/include-interceptor.svg?branch=master)](https://travis-ci.org/infection/include-interceptor)
+[![Coverage Status](https://coveralls.io/repos/github/infection/include-interceptor/badge.svg?branch=master)](https://coveralls.io/github/infection/include-interceptor?branch=master)
 
 # Infection - Include Interceptor Stream Wrapper
 
diff --git a/composer.json b/composer.json
index 1104689..a640f06 100644
--- a/composer.json
+++ b/composer.json
@@ -14,6 +14,7 @@
         "friendsofphp/php-cs-fixer": "^2.16",
         "infection/infection": "^0.15.0",
         "phan/phan": "^2.4",
+        "php-coveralls/php-coveralls": "^2.2",
         "phpstan/phpstan": "^0.12.8",
         "phpunit/phpunit": "^8.5",
         "vimeo/psalm": "^3.8"