diff --git a/src/dns_config/models/host.py b/src/dns_config/models/host.py
index e8b5cab..ad3db2f 100644
--- a/src/dns_config/models/host.py
+++ b/src/dns_config/models/host.py
@@ -70,7 +70,8 @@ class Host(BaseModel):
         default=None, description="Host FQDN in punycode.")
     provider_id: Optional[StrictStr] = Field(
         default=None, description="External provider identifier.")
-    server: Optional[StrictStr] = Field(description="The resource identifier.")
+    server: Optional[StrictStr] = Field(default=None,
+                                        description="The resource identifier.")
     site_id: Optional[StrictStr] = Field(default=None,
                                          description="Host site ID.")
     tags: Optional[Dict[str,
diff --git a/src/dns_data/models/record.py b/src/dns_data/models/record.py
index 27a8040..a40a4a5 100644
--- a/src/dns_data/models/record.py
+++ b/src/dns_data/models/record.py
@@ -77,7 +77,9 @@ class Record(BaseModel):
         default=None, description="The inheritance configuration.")
     ipam_host: Optional[StrictStr] = Field(
         default=None, description="The resource identifier.")
-    name_in_zone: Optional[StrictStr] = Field(description=
+    name_in_zone: Optional[StrictStr] = Field(
+        default=None,
+        description=
         "The relative owner name to the zone origin. Must be specified for creating the DNS resource record and is read only for other operations."
     )
     options: Optional[Dict[str, Any]] = Field(