# Update a dataset item

> Updates a test case. Runs that already scored it are unaffected — each result carries its own frozen copy of the input and expected output.

<Heading
  as={"h1"}
  className={"openapi__heading"}
  children={"Update a dataset item"}
>
</Heading>

<MethodEndpoint
  method={"put"}
  path={"/api/v1/datasets/{dataset_id}/items/{item_id}"}
  context={"endpoint"}
>
  
</MethodEndpoint>

Updates a test case. Runs that already scored it are unaffected — each result carries its own frozen copy of the input and expected output.

<Heading
  id={"request"}
  as={"h2"}
  className={"openapi-tabs__heading"}
>
  <Translate id="theme.openapi.request.title">Request</Translate>
</Heading>

<ParamsDetails
  {...require("./update-dataset-item.ParamsDetails.json")}
>
  
</ParamsDetails>

<RequestSchema
  {...require("./update-dataset-item.RequestSchema.json")}
>
  
</RequestSchema>

<StatusCodes
  {...require("./update-dataset-item.StatusCodes.json")}
>
  
</StatusCodes>