diff --git a/playwright/plugins/homeserver/synapse/templates/default/homeserver.yaml b/playwright/plugins/homeserver/synapse/templates/default/homeserver.yaml
index bc3ecd7c9b..539a917b20 100644
--- a/playwright/plugins/homeserver/synapse/templates/default/homeserver.yaml
+++ b/playwright/plugins/homeserver/synapse/templates/default/homeserver.yaml
@@ -102,3 +102,5 @@ experimental_features:
     # messages > non-joined historical messages.
     # Can be removed after Synapse enables it by default
     msc4115_membership_on_events: true
+
+enable_authenticated_media: true