diff --git a/Dockerfile b/Dockerfile
index 8244a3a..4b3f958 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # The site is plain files, served by nginx with Netlify's URL rules
 # (nginx.conf). It runs on jiji, behind Caddy and the Cloudflare tunnel.
-FROM mirror.gcr.io/nginxinc/nginx-unprivileged:1.30-alpine@sha256:15c994d10d6d78658721c3bcafff14cb281fba2a4bdf9d5ba92c416a472516e3
+FROM mirror.gcr.io/nginxinc/nginx-unprivileged:1.30-alpine@sha256:56b8272e43a0525f67aed68d1e0794a712d10e3e45a563e118e9a77c817e6f86
 
 COPY nginx.conf /etc/nginx/conf.d/default.conf
 COPY --link index.html robots.txt /srv/site/