diff --git a/markup.info.yml b/markup.info.yml
index 288ac89..eb99389 100644
--- a/markup.info.yml
+++ b/markup.info.yml
@@ -3,5 +3,6 @@ description: Defines a field type for markup.
 type: module
 package: Field types
 core: 8.x
+core_version_requirement: ^8 || ^9
 dependencies:
   - drupal:field