diff --git a/composer.json b/composer.json
index 8231e66..7ab2de0 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
     },
     "require-dev": {
         "behat/behat": "^3.0",
-        "henrikbjorn/phpspec-code-coverage": "^2.0",
+        "henrikbjorn/phpspec-code-coverage": "^2.0|^1.0",
         "phpspec/phpspec": "^2.4",
         "phpunit/phpunit": "^4.0|^5.0",
         "rmiller/behat-spec": "^0.3"