diff --git a/api/db/migrations/20241218101624_add-unicity-constraint-on-profile-rewards-table.js b/api/db/migrations/20241218101624_add-unicity-constraint-on-profile-rewards-table.js
new file mode 100644
index 00000000000..9f4c35a7f28
--- /dev/null
+++ b/api/db/migrations/20241218101624_add-unicity-constraint-on-profile-rewards-table.js
@@ -0,0 +1,16 @@
+const TABLE_NAME = 'profile-rewards';
+const UNIQUE_CONSTRAINT_COLUMNS = ['userId', 'rewardId'];
+
+const up = async function (knex) {
+  return knex.schema.alterTable(TABLE_NAME, (table) => {
+    table.unique(UNIQUE_CONSTRAINT_COLUMNS);
+  });
+};
+
+const down = async function (knex) {
+  return knex.schema.alterTable(TABLE_NAME, (table) => {
+    table.dropUnique(UNIQUE_CONSTRAINT_COLUMNS);
+  });
+};
+
+export { down, up };