diff --git a/build/Dockerfile b/build/Dockerfile
index faed601..55f1f1b 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -2,7 +2,7 @@
 # build AB-NGINX container (based on NGINX mainline on Alpine linux)
 #
 
-ARG NGINX_VERSION=1.27.3
+ARG NGINX_VERSION=1.27.5
 FROM nginx:${NGINX_VERSION}-alpine
 ARG NGINX_VERSION