diff --git a/src/libs/LabelStudio/openapi.yaml b/src/libs/LabelStudio/openapi.yaml
index e7128f1..7b64806 100644
--- a/src/libs/LabelStudio/openapi.yaml
+++ b/src/libs/LabelStudio/openapi.yaml
@@ -38897,6 +38897,7 @@ components:
           items:
             items:
               format: double
+              nullable: true
               type: number
             type: array
           type: array