diff --git a/lago_python_client/models/fee.py b/lago_python_client/models/fee.py
index 448b4da..78c2c6c 100644
--- a/lago_python_client/models/fee.py
+++ b/lago_python_client/models/fee.py
@@ -28,6 +28,7 @@ class FeeAppliedTaxes(BaseResponseModel):
 
 class FeeResponse(BaseResponseModel):
     lago_id: Optional[str]
+    lago_charge_id: Optional[str]
     lago_charge_filter_id: Optional[str]
     lago_invoice_id: Optional[str]
     lago_true_up_fee_id: Optional[str]
diff --git a/tests/fixtures/fee.json b/tests/fixtures/fee.json
index 1ca4a7c..77564e4 100644
--- a/tests/fixtures/fee.json
+++ b/tests/fixtures/fee.json
@@ -1,6 +1,7 @@
 {
   "fee": {
     "lago_id": "5eb02857-a71e-4ea2-bcf9-57d3a41bc6ba",
+    "lago_charge_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
     "lago_charge_filter_id": "1a2d9c8d-5875-4688-9854-5ccfd414bc5e",
     "lago_invoice_id": "1a2d9c8d-5875-4688-9854-5ccfd414bc5e",
     "lago_true_up_fee_id": "1a2d9c8d-5875-4688-9854-5ccfd414bc5e",
diff --git a/tests/fixtures/fees.json b/tests/fixtures/fees.json
index 22fd0a6..c510f3f 100644
--- a/tests/fixtures/fees.json
+++ b/tests/fixtures/fees.json
@@ -2,6 +2,7 @@
   "fees": [
     {
       "lago_id": "nil",
+      "lago_charge_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
       "lago_charge_filter_id": "1a2d9c8d-5875-4688-9854-5ccfd414bc5e",
       "lago_invoice_id": "1a2d9c8d-5875-4688-9854-5ccfd414bc5e",
       "lago_true_up_fee_id": "1a2d9c8d-5875-4688-9854-5ccfd414bc5e",
diff --git a/tests/fixtures/invoice.json b/tests/fixtures/invoice.json
index 68ea6af..d12d359 100644
--- a/tests/fixtures/invoice.json
+++ b/tests/fixtures/invoice.json
@@ -118,6 +118,7 @@
     "fees": [
       {
         "lago_id": "5eb02857-a71e-4ea2-bcf9-57d3a41bc6ba",
+        "lago_charge_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
         "invoice_display_name": "fee_invoice_display_name",
         "item": {
           "type": "charge",