diff --git a/graphql/schema.graphql b/graphql/schema.graphql
index efbb5f56d7..de26663e09 100644
--- a/graphql/schema.graphql
+++ b/graphql/schema.graphql
@@ -224,7 +224,7 @@ input CreateProjectInput {
   authenticateSubmissions: Boolean! @rename(attribute: "authenticatesubmissions") @rules(attribute: "authenticatesubmissions", apply: ["App\\Rules\\ProjectAuthenticateSubmissionsRule"])
 
   "A LDAP group users must be a member of to access the project."
-  ldapFilter: String @rename(attribute: "ldapfilter")
+  ldapFilter: String @deprecated(reason: "This field will be removed in the next major version of CDash.") @rename(attribute: "ldapfilter")
 }