diff --git a/composer.json b/composer.json
index efb0cd9..f593355 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
         "laminas/laminas-stdlib": "^3.2",
         "psr/container": "^1.0",
         "symfony/config": "3.4",
-        "symfony/process": "^3.4",
+        "symfony/process": "^3.4|^4.0|^5.0",
         "monolog/monolog": "^2.0",
         "symfony/yaml": "~3.0|~4.0",
         "symfony/console": "^3.4|^4.0|^5.0"