diff --git a/pantheon_advanced_page_cache.info.yml b/pantheon_advanced_page_cache.info.yml
index 7bfa63d..55a0270 100644
--- a/pantheon_advanced_page_cache.info.yml
+++ b/pantheon_advanced_page_cache.info.yml
@@ -2,4 +2,4 @@ name: Pantheon Advanced Page Cache
 description: 'Advanced page cache capabilities for Pantheon.'
 package: Performance and scalability
 type: module
-core_version_requirement: ^8 || ^9
+core_version_requirement: ^9.4