diff --git a/composer.json b/composer.json
index 96c4ea13..2dce08e8 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         "ext-json": "*",
         "ext-sockets": "*",
         "psr/log": "^1.1",
-        "ralouphie/getallheaders": "2.0.5",
+        "ralouphie/getallheaders": "^2.0.5|^3.0",
         "ramsey/uuid": "^3.7"
     },
     "require-dev": {