diff --git a/hypha/apply/api/v1/stream_serializers.py b/hypha/apply/api/v1/stream_serializers.py
index a6cf1ca615c28ba9afbb894ca7e3420192f5aff7..689b69655261e42d67da9a013fb0b3980b9514e2 100644
--- a/hypha/apply/api/v1/stream_serializers.py
+++ b/hypha/apply/api/v1/stream_serializers.py
@@ -109,6 +109,8 @@ class WagtailSerializer:
             del attrs['required']
 
         if isinstance(form_field, BlockFieldWrapper):
+            attrs['read_only'] = True
+            del attrs['required']
             return attrs
 
         # avoid "May not set both `read_only` and `required`"