diff --git a/composer.json b/composer.json
index ffb46c2..1ec51d1 100644
--- a/composer.json
+++ b/composer.json
@@ -27,6 +27,6 @@
   },
   "require": {
     "php": ">=7.1",
-    "symfony/yaml": "^4.4"
+    "symfony/yaml": "^4|^3|^2"
   }
 }