diff --git a/composer.json b/composer.json
index e0073f4..c8c2a05 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
   ],
   "require": {
     "php": "^7.1.0",
-    "symfony/process": "^4.0"
+    "symfony/process": "^4.0|^5.0"
   },
   "require-dev": {
     "phpunit\/phpunit": "^7.0",