diff --git a/Dockerfile b/Dockerfile
index a90a3ad..b06201b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.23.0
+FROM nginx:1.23.1
 # TODO: use renovate-bot to send pull requests on upstream image updates
 
 RUN mkdir /etc/nginx/templates.override