diff --git a/openapi3_1.yaml b/openapi3_1.yaml
index cb9de6e..9977592 100644
--- a/openapi3_1.yaml
+++ b/openapi3_1.yaml
@@ -260,7 +260,6 @@
                               - "10"
                               - "11"
                               - "12"
-                              - "13"
                             "example": "3"
                           "computed_on":
                             "type": "object"