diff --git a/src/cloud_discovery/models/source_config.py b/src/cloud_discovery/models/source_config.py
index 6a1ced8..8b225b4 100644
--- a/src/cloud_discovery/models/source_config.py
+++ b/src/cloud_discovery/models/source_config.py
@@ -98,12 +98,14 @@ def to_dict(self) -> Dict[str, Any]:
         * OpenAPI `readOnly` fields are excluded.
         * OpenAPI `readOnly` fields are excluded.
         * OpenAPI `readOnly` fields are excluded.
+        * OpenAPI `readOnly` fields are excluded.
         * Fields in `self.additional_properties` are added to the output dict.
         """
         excluded_fields: Set[str] = set([
             "account_schedule_id",
             "created_at",
             "deleted_at",
+            "id",
             "updated_at",
             "additional_properties",
         ])
diff --git a/src/ipam/docs/DHCPConfig.md b/src/ipam/docs/DHCPConfig.md
index f903c7d..f763ddc 100644
--- a/src/ipam/docs/DHCPConfig.md
+++ b/src/ipam/docs/DHCPConfig.md
@@ -15,8 +15,8 @@ Name | Type | Description | Notes
 **filters** | **List[str]** | The resource identifier. | [optional] 
 **filters_large_selection** | **List[str]** | The resource identifier. | [optional] 
 **filters_v6** | **List[str]** | The resource identifier. | [optional] 
-**hold_reclaimed_time** | **int** | The hold reclaimed time in seconds for IPv4 clients. | [optional] [default to 3600]
-**hold_reclaimed_time_v6** | **int** | The hold reclaimed time in seconds for IPv6 clients. | [optional] [default to 3600]
+**hold_reclaimed_time** | **int** | The hold reclaimed time in seconds for IPv4 clients. | [optional] [readonly] 
+**hold_reclaimed_time_v6** | **int** | The hold reclaimed time in seconds for IPv6 clients. | [optional] [readonly] 
 **ignore_client_uid** | **bool** | Enable to ignore the client UID when issuing a DHCP lease. Use this option to prevent assigning two IP addresses for a client which does not have a UID during one phase of PXE boot but acquires one for the other phase. | [optional] [default to False]
 **ignore_list** | [**List[IgnoreItem]**](IgnoreItem.md) | The list of clients to ignore requests from. | [optional] 
 **lease_time** | **int** | The lease duration in seconds. | [optional] [default to 3600]
diff --git a/src/ipam/models/dhcp_config.py b/src/ipam/models/dhcp_config.py
index 7bf74e6..f77a491 100644
--- a/src/ipam/models/dhcp_config.py
+++ b/src/ipam/models/dhcp_config.py
@@ -57,10 +57,10 @@ class DHCPConfig(BaseModel):
     filters_v6: Optional[List[StrictStr]] = Field(
         default=None, description="The resource identifier.")
     hold_reclaimed_time: Optional[StrictInt] = Field(
-        default=3600,
+        default=None,
         description="The hold reclaimed time in seconds for IPv4 clients.")
     hold_reclaimed_time_v6: Optional[StrictInt] = Field(
-        default=3600,
+        default=None,
         description="The hold reclaimed time in seconds for IPv6 clients.")
     ignore_client_uid: Optional[StrictBool] = Field(
         default=False,
@@ -113,9 +113,13 @@ def to_dict(self) -> Dict[str, Any]:
         * `None` is only added to the output dict for nullable fields that
           were set at model initialization. Other fields with value `None`
           are ignored.
+        * OpenAPI `readOnly` fields are excluded.
+        * OpenAPI `readOnly` fields are excluded.
         * Fields in `self.additional_properties` are added to the output dict.
         """
         excluded_fields: Set[str] = set([
+            "hold_reclaimed_time",
+            "hold_reclaimed_time_v6",
             "additional_properties",
         ])
 
@@ -173,11 +177,9 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
             "filters_v6":
             obj.get("filters_v6"),
             "hold_reclaimed_time":
-            obj.get("hold_reclaimed_time")
-            if obj.get("hold_reclaimed_time") is not None else 3600,
+            obj.get("hold_reclaimed_time"),
             "hold_reclaimed_time_v6":
-            obj.get("hold_reclaimed_time_v6")
-            if obj.get("hold_reclaimed_time_v6") is not None else 3600,
+            obj.get("hold_reclaimed_time_v6"),
             "ignore_client_uid":
             obj.get("ignore_client_uid")
             if obj.get("ignore_client_uid") is not None else False,