diff --git a/postgresql-walg/Chart.yaml b/postgresql-walg/Chart.yaml
index 43cbf32..2201051 100755
--- a/postgresql-walg/Chart.yaml
+++ b/postgresql-walg/Chart.yaml
@@ -15,4 +15,4 @@ maintainers:
 name: postgresql-walg
 sources:
 - https://github.com/abuntakov/charts
-version: 0.2
+version: 0.3
diff --git a/postgresql-walg/templates/deployment.yaml b/postgresql-walg/templates/deployment.yaml
index a676ae7..80121a9 100755
--- a/postgresql-walg/templates/deployment.yaml
+++ b/postgresql-walg/templates/deployment.yaml
@@ -83,11 +83,11 @@ spec:
         - name: WALG_S3_PREFIX
           value: {{ .Values.backup.s3.prefix }}
         - name: WALG_AWS_REGION
-          value: {{ default "us-west-2" .Values.backup.s3.region }}
+          value: {{ default "us-west-2" .Values.backup.s3.region | quote }}
         - name: POSTGRES_MODE
           value: {{ default "backup" .Values.backup.mode }}
         - name: WALG_DELETE_RETAIN
-          value: {{ default "25" .Values.backup.deleteRetain }}
+          value: {{ default "15" .Values.backup.deleteRetain }}
         - name: WALG_BASE_BACKUP_IN
           value: {{ default "0 4 * * *" .Values.backup.baseBackupIn | quote }}
         {{- end -}}
diff --git a/postgresql-walg/values.yaml b/postgresql-walg/values.yaml
index 407edd7..72daed8 100755
--- a/postgresql-walg/values.yaml
+++ b/postgresql-walg/values.yaml
@@ -146,10 +146,13 @@ podAnnotations: {}
 backup:
   enabled: false
   s3:
-#    accessKey: 
-#    secretKey: 
+#    accessKey:
+#    secretKey:
+#    endpoint: http+path://s3-us-west-2.amazonaws.com:80
+#    prefix: s3://my-backup/my-db
+#    region: us-west-2
   config:
-    walLevel: replica 
+    walLevel: replica
     archiveMode: on
     archiveCommand: "'envdir /etc/wal-e.d/env wal-e wal-push %p'"
     archiveTimeout: 60