diff --git a/compose.production.yaml b/compose.production.yaml
index ae71897..f7187d8 100644
--- a/compose.production.yaml
+++ b/compose.production.yaml
@@ -6,7 +6,7 @@
 # See docs/deployment.md.
 services:
   caddy:
-    image: caddy:2.11.7-alpine@sha256:e70b164da81ef698b3ad19af799ea6086ce6d9e48ed4079eb9fe26f6fbf14ee5
+    image: caddy:2.11.9-alpine@sha256:0bbb055bda6793c999bde78b1b5ce3e89f829fb031af2cf50056ea1246559fee
     restart: unless-stopped
     environment:
       COMMONAGE_DOMAIN: ${COMMONAGE_DOMAIN:?Set COMMONAGE_DOMAIN in .env, for example archive.example.org}