diff --git a/README.md b/README.md
index f04cd39..1194d26 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ![build](https://github.com/dcarrillo/docker-nginx/workflows/CI/badge.svg)
 
-Nginx docker image with a minimal set of modules.
+Nginx docker image with a minimal set of modules. The image is based on the official Nginx image and it is built from source.
 
 Current modules:
 
diff --git a/conf.env b/conf.env
index ea5b3c1..8f2933f 100644
--- a/conf.env
+++ b/conf.env
@@ -1,2 +1,2 @@
-NGINX_VERSION=1.27.3
+NGINX_VERSION=1.27.4
 DOCKER_IMAGE=dcarrillo/nginx