diff --git a/Dockerfile b/Dockerfile
index 85ab71b..b456459 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM caddy:2.8.4-builder-alpine@sha256:d6b8bfa60f9f4ed70368ae6df4da9192d8c6c5a4ed1991cfea6d46880add355d AS builder
+FROM caddy:2.8.4-builder-alpine@sha256:21dc27cb6464a19f4f1dbbe66702601c8d860aff1c9c5552097d4743c077be53 AS builder
 RUN xcaddy build --with github.com/lucaslorentz/caddy-docker-proxy/v2
 FROM caddy:2.8.4-alpine@sha256:221bcf3be161b0d856bdb7bea76b42386d732d19348f79692404829532d83f4a
 COPY --from=builder /usr/bin/caddy /usr/bin/caddy