diff --git a/dictation_server/db/migrations/048-add-index-licenses.sql b/dictation_server/db/migrations/048-add-index-licenses.sql
new file mode 100644
index 0000000..4613363
--- /dev/null
+++ b/dictation_server/db/migrations/048-add-index-licenses.sql
@@ -0,0 +1,11 @@
+-- +migrate Up
+ALTER TABLE `licenses` ADD INDEX `idx_allocated_user_id` (allocated_user_id);
+ALTER TABLE `user_group_member` ADD INDEX `idx_user_id` (user_id);
+ALTER TABLE `user_group_member` ADD INDEX `idx_user_group_id` (user_group_id);
+ALTER TABLE `users` ADD INDEX `idx_account_id` (account_id);
+
+-- +migrate Down
+ALTER TABLE `licenses` DROP INDEX `idx_allocated_user_id`;
+ALTER TABLE `user_group_member` DROP INDEX `idx_user_id`;
+ALTER TABLE `user_group_member` DROP INDEX `idx_user_group_id`;
+ALTER TABLE `users`  DROP INDEX `idx_account_id`;