diff --git a/input.yml b/input.yml
index b0e1959..f1d06f4 100644
--- a/input.yml
+++ b/input.yml
@@ -42,6 +42,14 @@ paths:
                 type: array
                 items:
                   $ref: '#/components/schemas/Error'
+        '400':
+          description: Json parse error
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Error'
 
 components:
   schemas: