diff --git a/Dockerfile b/Dockerfile
index 6b8040a..afdfb3e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM caddy:2.9.1-builder-alpine@sha256:3a45422d044ed49dc29bb90981378f2705000cc45a85261f099572caf6187f57 AS builder
+FROM caddy:2.9.1-builder-alpine@sha256:202251e550871dacf6df92ba298fedcd72197f457d570ab12ea531956fbd5710 AS builder
 RUN xcaddy build --with github.com/lucaslorentz/caddy-docker-proxy/v2
 FROM caddy:2.9.1-alpine@sha256:b60636634fd2aebaf9460cf60997ad83aad6b139318d5713e2b78a60f52b139c
 COPY --from=builder /usr/bin/caddy /usr/bin/caddy