diff --git a/src/ipam/docs/Address.md b/src/ipam/docs/Address.md
index 72a6ecf..3918d2b 100644
--- a/src/ipam/docs/Address.md
+++ b/src/ipam/docs/Address.md
@@ -6,7 +6,7 @@ An __Address__ object (_ipam/address_) represents any single IP address within a
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**address** | **str** | The address in form \"a.b.c.d\". | 
+**address** | **str** | The address in form \"a.b.c.d\". | [optional] 
 **comment** | **str** | The description for the address object. May contain 0 to 1024 characters. Can include UTF-8. | [optional] 
 **compartment_id** | **str** | The compartment associated with the object. If no compartment is associated with the object, the value defaults to empty. | [optional] [readonly] 
 **created_at** | **datetime** | Time when the object has been created. | [optional] [readonly] 
diff --git a/src/ipam/models/address.py b/src/ipam/models/address.py
index 90bab6b..bcbdc83 100644
--- a/src/ipam/models/address.py
+++ b/src/ipam/models/address.py
@@ -29,7 +29,8 @@ class Address(BaseModel):
     """
     An __Address__ object (_ipam/address_) represents any single IP address within a given IP space.
     """ # noqa: E501
-    address: StrictStr = Field(description="The address in form \"a.b.c.d\".")
+    address: Optional[StrictStr] = Field(
+        default=None, description="The address in form \"a.b.c.d\".")
     comment: Optional[StrictStr] = Field(
         default=None,
         description=