diff --git a/Dockerfile b/Dockerfile
index 96fd9aa02..33979e298 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN npm run build
 
 FROM wurstbrot/dsomm-yaml-generation as yaml
 
-FROM caddy
+FROM caddy:2.9
 ENV PORT 8080
 
 COPY Caddyfile /etc/caddy/Caddyfile