diff --git a/contactmap.info.yml b/contactmap.info.yml
index 38a837b..5b99cf8 100644
--- a/contactmap.info.yml
+++ b/contactmap.info.yml
@@ -4,3 +4,4 @@ type: module
 package: Core
 configure: contactmap.form
 core: '8.x'
+core_version_requirement: ^8 || ^9