diff --git a/responsive_menu.info.yml b/responsive_menu.info.yml
index 12157af..c25e634 100644
--- a/responsive_menu.info.yml
+++ b/responsive_menu.info.yml
@@ -1,6 +1,7 @@
 name: 'Responsive menu'
 description: 'Provides a javascript based off-canvas responsive menu with depth. At wider browser widths it provides a horizontal menu capable of drop downs and flyouts.'
 core: 8.x
+core_version_requirement: ^8 || ^9
 package: Other
 configure: responsive_menu.settings
 dependencies: