diff --git a/src/concurrency/ConcurrencyClient.ts b/src/concurrency/ConcurrencyClient.ts
index 3ccab99..e2dbfca 100644
--- a/src/concurrency/ConcurrencyClient.ts
+++ b/src/concurrency/ConcurrencyClient.ts
@@ -67,6 +67,6 @@ export class ConcurrencyClient {
             method: 'POST',
             headers: { authorization: this.password }
         });
-        return response.body;
+        return Number(response.body);
     }
 }
\ No newline at end of file