diff --git a/Dockerfile b/Dockerfile
index d7ccd51..6c34642 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.17
+FROM alpine:3.16
 
 LABEL description="Simple forum software for building great communities" \
       maintainer="riko.dev <kontakt@riko.dev>"
diff --git a/README.md b/README.md
index d3b6ff0..e7061ab 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
 
 - Multi-platform image: `linux/386`, `linux/amd64`, `linux/arm/v6`, `linux/arm/v7`, `linux/arm64`
 - Lightweight & secure image
-- Based on Alpine Linux 3.17
+- Based on Alpine Linux 3.16
 - **nginx** and **PHP 8.1**
 - Latest [Flarum Framework](https://github.com/flarum/framework) (v1.7.0)
 - MySQL/Mariadb driver