diff --git a/Dockerfile b/Dockerfile
index 892f84a..a90a3ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.22.0
+FROM nginx:1.23.0
 # TODO: use renovate-bot to send pull requests on upstream image updates
 
 RUN mkdir /etc/nginx/templates.override