diff --git a/backend/src/db/migrations/20250630170849_add-index-for-access-token.ts b/backend/src/db/migrations/20250630170849_add-index-for-access-token.ts
new file mode 100644
index 000000000..b2ad9f3b5
--- /dev/null
+++ b/backend/src/db/migrations/20250630170849_add-index-for-access-token.ts
@@ -0,0 +1,29 @@
+import { Knex } from "knex";
+
+import { TableName } from "../schemas";
+
+export async function up(knex: Knex): Promise<void> {
+  await knex.raw(`
+        CREATE INDEX CONCURRENTLY IF NOT EXISTS ${TableName.IdentityAccessToken}_identityid_index 
+        ON ${TableName.IdentityAccessToken} ("identityId")
+      `);
+
+  await knex.raw(`
+        CREATE INDEX CONCURRENTLY IF NOT EXISTS ${TableName.IdentityAccessToken}_identityuaclientsecretid_index 
+        ON ${TableName.IdentityAccessToken} ("identityUAClientSecretId")
+      `);
+}
+
+export async function down(knex: Knex): Promise<void> {
+  await knex.raw(`
+        DROP INDEX IF EXISTS ${TableName.IdentityAccessToken}_identityid_index
+      `);
+
+  await knex.raw(`
+        DROP INDEX IF EXISTS ${TableName.IdentityAccessToken}_identityuaclientsecretid_index
+      `);
+}
+
+const config = { transaction: false };
+
+export { config };