diff --git a/postgres/config/clusters/main.yaml b/postgres/config/clusters/main.yaml
index e19400b..a1757bf 100644
--- a/postgres/config/clusters/main.yaml
+++ b/postgres/config/clusters/main.yaml
@@ -32,6 +32,7 @@ spec:
         host: 10.105.6.198
         user: streaming_replica
         dbname: postgres
+        sslmode: allow
       plugin:
         name: barman-cloud.cloudnative-pg.io
         parameters: