diff --git a/Dockerfile b/Dockerfile
index 71d16f3..cf9dd69 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:3.12 AS build
 
-ENV NGINX_VERSION 1.20.1
+ENV NGINX_VERSION 1.21.0
 # https://github.com/nginx/njs
 ENV NJS_MODULE_VERSION 0.5.3
 # https://github.com/openresty/echo-nginx-module
diff --git a/README.md b/README.md
index 45a9b4a..19919d5 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,11 @@
 # Supported tags and respective `Dockerfile` links
 
 - [`latest` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/master/Dockerfile)
-- [`1.19.10-alpine`, `1.19-alpine` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/v1.19.10/Dockerfile) Mainline version
+- [`1.21.0-alpine`, `1.21-alpine` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/v1.21.0/Dockerfile) Mainline version
 - [`1.20.1-alpine`, `1.20-alpine` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/v1.20.1/Dockerfile) Stable version
 - <details><summary>Older versions</summary>
 
+  - [`1.19.10-alpine`, `1.19-alpine` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/v1.19.10/Dockerfile)
   - [`1.18.0-alpine`, `1.18-alpine` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/v1.18.0/Dockerfile)
   - [`1.17.10-alpine`, `1.17-alpine` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/v1.17.10/Dockerfile)
   - [`1.16.0-alpine`, `1.16-alpine` (*Dockerfile*)](https://github.com/levonet/docker-nginx/blob/v1.16.0/Dockerfile)