diff --git a/Dockerfile b/Dockerfile
index 2d7e156..25dcf86 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM caddy:builder AS builder
+FROM caddy/caddy:2.10-builder-alpine AS builder
 
 RUN xcaddy build \
     --with github.com/lucaslorentz/caddy-docker-proxy/v2 \