diff --git a/user_reference_node_access.info.yml b/user_reference_node_access.info.yml
index cea0942..7d9a8a2 100644
--- a/user_reference_node_access.info.yml
+++ b/user_reference_node_access.info.yml
@@ -2,6 +2,7 @@ name: User Reference Node Access
 description: 'Restricts node access to users referenced by a user reference field. '
 type: module
 core: 8.x
+core_version_requirement: ^8 || ^9
 package: 'Tinsel Suite'
 dependencies:
   - drupal:field