diff --git a/postmark.info.yml b/postmark.info.yml
index 59bcad9..8e5cc56 100644
--- a/postmark.info.yml
+++ b/postmark.info.yml
@@ -1,7 +1,7 @@
 name: Postmark
 type: module
 description: Send email using the third party Postmark service.
-core_version_requirement: ^8 || ^9
+core_version_requirement: ^8 || ^9 || ^10
 package: Mail
 configure: postmark.settings
 dependencies: