diff --git a/docs/openapi/monitoring-api.json b/docs/openapi/monitoring-api.json
index 14ea8d4..f4c3e94 100644
--- a/docs/openapi/monitoring-api.json
+++ b/docs/openapi/monitoring-api.json
@@ -64337,9 +64337,9 @@
         "type": "object",
         "properties": {
           "id": {
+            "minLength": 1,
             "type": "string",
-            "description": "Message id",
-            "format": "uuid"
+            "description": "Message id"
           },
           "domainId": {
             "type": "string",
diff --git a/src/devhelm/_generated.py b/src/devhelm/_generated.py
index 3353205..26098e4 100644
--- a/src/devhelm/_generated.py
+++ b/src/devhelm/_generated.py
@@ -11723,7 +11723,7 @@ class DemoAvailabilityDto(BaseModel):
 
 class EmailMessageDto(BaseModel):
     model_config = ConfigDict(extra="ignore", populate_by_name=True)
-    id: Annotated[UUID, Field(description="Message id")]
+    id: Annotated[str, Field(description="Message id", min_length=1)]
     domain_id: Annotated[UUID, Field(alias="domainId", description="Parent domain id")]
     inbox: Annotated[
         str | None, Field(description="Local-part the message was addressed to")