diff --git a/sysadmin/grid5000/cassandra/ansible/templates/swhstorage/replayer.yml b/sysadmin/grid5000/cassandra/ansible/templates/swhstorage/replayer.yml
index 8366c4b..32ff8b1 100644
--- a/sysadmin/grid5000/cassandra/ansible/templates/swhstorage/replayer.yml
+++ b/sysadmin/grid5000/cassandra/ansible/templates/swhstorage/replayer.yml
@@ -1,25 +1,26 @@
 storage:
   cls: cassandra
   args:
     hosts: {{ cassandra_seed_ips.split(',') }}
     keyspace: swh
     consistency_level: LOCAL_QUORUM
     objstorage:
       cls: memory
       args: {}
 
 journal_client:
       cls: kafka
       brokers:
 {% for broker in journal.brokers %}
         - {{ broker }}
 {% endfor %}
       sasl.username: {{ journal.consumer.user }}
       sasl.password: {{ journal_consumer_password }}
       security.protocol: sasl_ssl
       sasl.mechanism: SCRAM-SHA-512
       # The prefix must match the username
       group_id: {{ journal.consumer.group }}-{{ item }}
       batch_size: 250
+      message.max.bytes: 524288000
       object_types:
         - {{ item }}