diff --git a/composer.json b/composer.json
index 0e268b1..ca0724a 100644
--- a/composer.json
+++ b/composer.json
@@ -13,6 +13,6 @@
     "source": "http://cgit.drupalcode.org/samlauth"
   },
   "require": {
-    "onelogin/php-saml": "^2.10.6"
+    "onelogin/php-saml": "^2.10.6|^3.0"
   }
 }