diff --git a/test/Microsoft.OpenApi.Readers.Tests/V31Tests/Samples/sample.yaml b/test/Microsoft.OpenApi.Readers.Tests/V31Tests/Samples/sample.yaml
index 8df5627fb..41817174e 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V31Tests/Samples/sample.yaml
+++ b/test/Microsoft.OpenApi.Readers.Tests/V31Tests/Samples/sample.yaml
@@ -98,7 +98,7 @@ components:
         - weight
       properties:
         id:
-          type: str
+          type: string
           format: uuid
         weight:
           type: number