diff --git a/composer.json b/composer.json
index 4bed95fb6cf..2711e783be2 100644
--- a/composer.json
+++ b/composer.json
@@ -39,7 +39,7 @@
         "phpunit/php-timer": "^2.1",
         "sebastian/comparator": "^3.0",
         "sebastian/diff": "^3.0",
-        "sebastian/environment": "^4.1",
+        "sebastian/environment": "^4.2",
         "sebastian/exporter": "^3.1",
         "sebastian/global-state": "^3.0",
         "sebastian/object-enumerator": "^3.0.3",