diff --git a/lago_python_client/models/subscription.py b/lago_python_client/models/subscription.py
index 46644c4..e6fb1f9 100644
--- a/lago_python_client/models/subscription.py
+++ b/lago_python_client/models/subscription.py
@@ -36,6 +36,8 @@ class SubscriptionResponse(BaseResponseModel):
     previous_plan_code: Optional[str]
     next_plan_code: Optional[str]
     downgrade_plan_date: Optional[str]
+    current_billing_period_started_at: Optional[str]
+    current_billing_period_ending_at: Optional[str]
 
 
 class SubscriptionsResponse(BaseResponseModel):
diff --git a/tests/fixtures/one_off_invoice.json b/tests/fixtures/one_off_invoice.json
index 49ea5f5..995cc3e 100644
--- a/tests/fixtures/one_off_invoice.json
+++ b/tests/fixtures/one_off_invoice.json
@@ -84,7 +84,9 @@
         "subscription_at": "2022-04-29T08:59:51Z",
         "previous_plan_code": null,
         "next_plan_code": null,
-        "downgrade_plan_date": null
+        "downgrade_plan_date": null,
+        "current_billing_period_started_at": "2022-04-29T08:59:51Z",
+        "current_billing_period_ending_at": "2022-05-29T23:59:59Z"
       }
     ],
     "fees": [
diff --git a/tests/fixtures/pending_subscription.json b/tests/fixtures/pending_subscription.json
index 86affad..ffbbfb4 100644
--- a/tests/fixtures/pending_subscription.json
+++ b/tests/fixtures/pending_subscription.json
@@ -13,6 +13,8 @@
     "subscription_at": "2022-04-29T08:59:51Z",
     "previous_plan_code": null,
     "next_plan_code": null,
-    "downgrade_plan_date": null
+    "downgrade_plan_date": null,
+    "current_billing_period_started_at": "2022-04-29T08:59:51Z",
+    "current_billing_period_ending_at": "2022-05-29T23:59:59Z"
   }
 }
diff --git a/tests/fixtures/subscription.json b/tests/fixtures/subscription.json
index 893ccbe..40ebcba 100644
--- a/tests/fixtures/subscription.json
+++ b/tests/fixtures/subscription.json
@@ -14,6 +14,8 @@
     "subscription_at": "2022-04-29T08:59:51Z",
     "previous_plan_code": null,
     "next_plan_code": null,
-    "downgrade_plan_date": null
+    "downgrade_plan_date": null,
+    "current_billing_period_started_at": "2022-04-29T08:59:51Z",
+    "current_billing_period_ending_at": "2022-05-29T23:59:59Z"
   }
 }