diff --git a/grafana-backuper/2-secret.yaml b/grafana-backuper/2-secret.yaml
index b85ac4c..b3fc901 100644
--- a/grafana-backuper/2-secret.yaml
+++ b/grafana-backuper/2-secret.yaml
@@ -1,3 +1,4 @@
+---
 apiVersion: v1
 kind: Secret
 metadata:
diff --git a/prometheus/secret.yaml b/prometheus/secret.yaml
index af20a04..f1661e6 100644
--- a/prometheus/secret.yaml
+++ b/prometheus/secret.yaml
@@ -1,3 +1,4 @@
+---
 apiVersion: v1
 kind: Secret
 metadata: