diff --git a/kubernetes/cronjob.yaml b/kubernetes/cronjob.yaml
index 79316d7..5062d69 100644
--- a/kubernetes/cronjob.yaml
+++ b/kubernetes/cronjob.yaml
@@ -32,7 +32,7 @@ spec:
               value: bucketname
             - name: S3_EXPIRE_DAYS
               # remove this variable to retain all snapshots (default)
-              value:
+              value: "90"
             - name: VAULT_ROLE
               value: vault-snapshot
             - name: VAULT_ADDR