diff --git a/src/main/resources/db/migration/V1_65__add_indexes_to_grant_submission_and_grant_applicant_org_profile.sql b/src/main/resources/db/migration/V1_65__add_indexes_to_grant_submission_and_grant_applicant_org_profile.sql
new file mode 100644
index 00000000..0ef77f9a
--- /dev/null
+++ b/src/main/resources/db/migration/V1_65__add_indexes_to_grant_submission_and_grant_applicant_org_profile.sql
@@ -0,0 +1,3 @@
+CREATE UNIQUE INDEX grant_applicant_organisation_profile_applicant_id_idx ON grant_applicant_organisation_profile (applicant_id);
+CREATE UNIQUE INDEX grant_submission_applicant_id_idx ON grant_submission (applicant_id);
+CREATE UNIQUE INDEX grant_submission_application_id_idx ON grant_submission (application_id);
\ No newline at end of file