diff --git a/modules/opencase_default_reporting/opencase_default_reporting.info.yml b/modules/opencase_default_reporting/opencase_default_reporting.info.yml
index dd49406..7be66e0 100644
--- a/modules/opencase_default_reporting/opencase_default_reporting.info.yml
+++ b/modules/opencase_default_reporting/opencase_default_reporting.info.yml
@@ -1,7 +1,7 @@
 name: 'Opencase example reporting'
 type: module
 description: 'Reporting on the types of people, cases etc that the Opencase Defaults module provides'
-core: 8.x
+core_version_requirement: "^9"
 package: 'OpenCase'
 dependencies:
   - opencase_defaults
diff --git a/modules/opencase_defaults/opencase_defaults.info.yml b/modules/opencase_defaults/opencase_defaults.info.yml
index 12fe7f2..0e183d3 100644
--- a/modules/opencase_defaults/opencase_defaults.info.yml
+++ b/modules/opencase_defaults/opencase_defaults.info.yml
@@ -1,7 +1,7 @@
 name: 'Opencase Example Configuration'
 type: module
 description: 'Person types, case types, activity types and user roles suited to an asylum advice group'
-core: 8.x
+core_version_requirement: "^9"
 package: 'OpenCase'
 dependencies:
   - contact
diff --git a/modules/opencase_reporting/opencase_reporting.info.yml b/modules/opencase_reporting/opencase_reporting.info.yml
index bac88e9..94e5566 100644
--- a/modules/opencase_reporting/opencase_reporting.info.yml
+++ b/modules/opencase_reporting/opencase_reporting.info.yml
@@ -1,7 +1,7 @@
 name: 'OpenCase Reporting'
 type: module
 description: 'Reporting functionality for OpenCase'
-core: 8.x
+core_version_requirement: "^9"
 package: 'OpenCase'
 dependencies:
   - opencase_entities