diff --git a/openapi.yaml b/openapi.yaml
index 0946c93fb..d57aaab62 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -522,10 +522,12 @@ definitions:
         items:
           type: string
           minItems: 1
+          maxItems: 10
           pattern: '^([0-9a-fA-F]{64}|[0-9a-fA-F]{80})$'
       logIndexes:
         type: array
         minItems: 1
+        maxItems: 10
         items:
           type: integer
           minimum: 0
@@ -534,6 +536,7 @@ definitions:
         items:
           $ref: '#/definitions/ProposedEntry'
           minItems: 1
+          maxItems: 10
 
   LogInfo:
     type: object