diff --git a/kubernetes/infrastructure/postgres/release.yaml b/kubernetes/infrastructure/postgres/release.yaml
index 3197ecf..4194555 100644
--- a/kubernetes/infrastructure/postgres/release.yaml
+++ b/kubernetes/infrastructure/postgres/release.yaml
@@ -25,4 +25,6 @@ spec:
             replicationPasswordKey: 'replication-password'
     primary:
       resourcesPreset: 'medium'
+      persistence:
+        size: '20Gi'
   interval: 5m