diff --git a/README.md b/README.md
index bc30b4f..e60e8f3 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ The Transfa Python SDK provides methods and resources to the Transfa API for app
 
 ## Documentation
 
-You can check the[Python API documentation](https://docs.transfapp.com/sdk/python/) for more details about the API. 
+You can check the [Python API documentation](https://docs.transfapp.com/sdk/python/) for more details about the API. 
 
 ## Installation
 
diff --git a/requirements.txt b/requirements.txt
index 99630ec..e013dd1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,3 +14,4 @@ requests==2.28.1
     # via transfa-python-sdk (pyproject.toml)
 urllib3==1.26.12
     # via requests
+responses==0.21.0
\ No newline at end of file
diff --git a/transfa/api_resources/payments.py b/transfa/api_resources/payments.py
index 57a1118..55ccf8a 100644
--- a/transfa/api_resources/payments.py
+++ b/transfa/api_resources/payments.py
@@ -72,7 +72,7 @@ def refund(self, payment_id, **kwargs):
     def status(self, payment_id):
         """
         :param payment_id: Payment id.
-        :return: A a tuple of the status and financial status of the payment. => (status, financial_status)
+        :return: A tuple of the status and financial status of the payment. => (status, financial_status)
         """
         response = self.retrieve(payment_id)
         if response.status_code != 200: