diff --git a/http/swagger.yml b/http/swagger.yml
index 96ac730849..afdba53175 100644
--- a/http/swagger.yml
+++ b/http/swagger.yml
@@ -7614,7 +7614,6 @@ components:
         - ms
         - s
         - us
-        - u
         - ns
     TaskCreateRequest:
       type: object