diff --git a/composer.json b/composer.json
index a3c62a4..2fb19e7 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     "mezzio/mezzio-authentication": "^1.10",
     "psr/http-message": "^1.0.1 || ^2.0",
     "psr/http-server-middleware": "^1.0",
-    "webmozart/assert": "^1.11"
+    "webmozart/assert": "^1.11 || ^2.0"
   },
   "require-dev": {
     "laminas/laminas-coding-standard": "^3.1",