diff --git a/Dockerfile b/Dockerfile
index 5f0b3ea..c100925 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM caddy:2.9.1-builder-alpine@sha256:c473c15a6761701625f62438b87fdc95d7f25a278e4df0043c4efc5ee092f4af AS builder
+FROM caddy:2.9.1-builder-alpine@sha256:c82c536196354acff870ce9f99795ed7bff7d1ed85c52c8d3f10a1688a947de3 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