diff --git a/chart/templates/awsPersistence.yaml b/chart/templates/awsPersistence.yaml
index d6509c93b1a3e5f8d14874979b2fb614298bcd1e..2ce31306cc53a325118704f139e5a0fdac9c2680 100644
--- a/chart/templates/awsPersistence.yaml
+++ b/chart/templates/awsPersistence.yaml
@@ -9,7 +9,7 @@ metadata:
     app: airflow
 spec:
   accessModes:
-    - ReadWriteMany
+    - ReadWriteOnce
   volumeMode: Filesystem
   storageClassName: gp2
   resources:
@@ -28,7 +28,7 @@ metadata:
     app: airflow
 spec:
   accessModes:
-    - ReadWriteMany
+    - ReadWriteOnce
   volumeMode: Filesystem
   storageClassName: gp2
   resources:
@@ -47,7 +47,7 @@ metadata:
     app: airflow
 spec:
   accessModes:
-    - ReadWriteMany
+    - ReadWriteOnce
   volumeMode: Filesystem
   storageClassName: gp2
   resources:
@@ -66,7 +66,7 @@ metadata:
     app: airflow
 spec:
   accessModes:
-    - ReadWriteMany
+    - ReadWriteOnce
   volumeMode: Filesystem
   storageClassName: gp2
   resources: