diff --git a/composer.json b/composer.json
index e31b7af..e6be5ae 100644
--- a/composer.json
+++ b/composer.json
@@ -21,7 +21,7 @@
     "require": {
         "php": "^8.0",
         "psr/http-message": "^1.0",
-        "thecodingmachine/safe": "^1.3.3"
+        "thecodingmachine/safe": "^1.3.3|^2.0"
     },
     "provide": {
         "psr/http-message-implementation": "^1.0"