diff --git a/caddy/README.md b/caddy/README.md
index 71e66a4e5..db67bb39a 100644
--- a/caddy/README.md
+++ b/caddy/README.md
@@ -201,9 +201,12 @@ services:
 
 volumes:
   caddy_data:
+    external: true
   caddy_config:
 ```
 
+Defining the data volume as [`external`](https://docs.docker.com/compose/compose-file/compose-file-v3/#external) makes sure `docker-compose down` does not delete the volume. You may need to create it manually using `docker volume create [project-name]_caddy_data`.
+
 # Image Variants
 
 The `caddy` images come in many flavors, each designed for a specific use case.
diff --git a/photon/README.md b/photon/README.md
index 97ec85511..6a41316fc 100644
--- a/photon/README.md
+++ b/photon/README.md
@@ -24,9 +24,9 @@ WARNING:
 
 # Supported tags and respective `Dockerfile` links
 
--	[`4.0`, `4.0-20210702`, `latest`](https://github.com/vmware/photon-docker-image/blob/ad0943b375ca97aaf5eaad2819fc0748c2dd6fc6/docker/Dockerfile)
--	[`3.0`, `3.0-20210702`](https://github.com/vmware/photon-docker-image/blob/0ea22c76fc30504fc5c8acbb9c932d153a8883cc/docker/Dockerfile)
--	[`1.0`, `1.0-20210702`](https://github.com/vmware/photon-docker-image/blob/867c572680db96acc17bac521d7ea2f5a5aec419/docker/Dockerfile)
+-	[`4.0`, `4.0-20210709`, `latest`](https://github.com/vmware/photon-docker-image/blob/8a10f019040e2be27b073c5ac9f5badc25022370/docker/Dockerfile)
+-	[`3.0`, `3.0-20210709`](https://github.com/vmware/photon-docker-image/blob/28bf2cbe1e94ac9fb38867f2e3d231af44c4c216/docker/Dockerfile)
+-	[`1.0`, `1.0-20210709`](https://github.com/vmware/photon-docker-image/blob/19dceaf9b82c00f47c5c970c797451c001af4eb6/docker/Dockerfile)
 -	[`2.0`, `2.0-20210702`](https://github.com/vmware/photon-docker-image/blob/e32c0f133d21c7f2122edda739ff55ffcf6bf7e4/docker/Dockerfile)
 
 # Quick reference (cont.)