diff --git a/README.md b/README.md
index 157b331..efe60ba 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ This repo has 2 different `docker-compose` configs-- choose your favorite. The `
 
 - [`one-container`](one-container/) (new) - Install Unbound directly into the Pi-Hole container
   - This configuration contacts the DNS root servers directly, please read the Pi-Hole docs on [Pi-hole as All-Around DNS Solution](https://docs.pi-hole.net/guides/unbound/) to understand what this means.
-  - With this approach, we can also simply our networking since `macvlan` is no longer necessary.
+  - With this approach, we can also simplify our Docker networking since `macvlan` is no longer necessary.
 - [`two-container`](two-container/) (legacy) - Use separate containers for Pi-Hole and Unbound
   - This configuration uses MatthewVance's [unbound-docker](https://github.com/MatthewVance/unbound-docker) container to implement encrypted DNS to third party DNS resolvers (eg Cloudflare). This is arguably less privacy-friendly since you're handing your DNS queries to those 3rd party providers.
+
diff --git a/one-container/pihole-unbound/Dockerfile b/one-container/pihole-unbound/Dockerfile
index 549aaa2..3bf8c51 100644
--- a/one-container/pihole-unbound/Dockerfile
+++ b/one-container/pihole-unbound/Dockerfile
@@ -1,4 +1,4 @@
-FROM pihole/pihole:v5.8.1
+FROM pihole/pihole:2021.09
 RUN apt update && apt install -y unbound
 
 COPY lighttpd-external.conf /etc/lighttpd/external.conf 
diff --git a/one-container/pihole-unbound/VERSION b/one-container/pihole-unbound/VERSION
index 0c225d9..76c052b 100644
--- a/one-container/pihole-unbound/VERSION
+++ b/one-container/pihole-unbound/VERSION
@@ -1 +1 @@
-v5.8.1-1
+2021.09