diff --git a/composer.json b/composer.json
index 56cfc4fb1c2d498a0a9e28d16edc612ae7cedea4..e8b316894cc11e63da03fcd02ff036d7ff24042d 100644
--- a/composer.json
+++ b/composer.json
@@ -61,7 +61,7 @@
         "simplesamlphp/simplesamlphp-module-discopower": "^0.9",
         "simplesamlphp/simplesamlphp-module-exampleattributeserver": "^1.0",
         "simplesamlphp/simplesamlphp-module-expirycheck": "^0.9",
-        "simplesamlphp/simplesamlphp-module-ldap": "^0.9",
+        "simplesamlphp/simplesamlphp-module-ldap": "^0.9 | ^1.0",
         "simplesamlphp/simplesamlphp-module-memcookie": "^1.2",
         "simplesamlphp/simplesamlphp-module-memcachemonitor": "^0.9",
         "simplesamlphp/simplesamlphp-module-metarefresh": "^0.9",