diff --git a/docker/caddy/Dockerfile b/docker/caddy/Dockerfile
index 423d303..5704029 100644
--- a/docker/caddy/Dockerfile
+++ b/docker/caddy/Dockerfile
@@ -1,10 +1,10 @@
 # Dockerfile for caddy v1.0.5 based alpine
-# Copyright (C) 2020 Teddysun <i@teddysun.com>
+# Copyright (C) 2021 Teddysun <i@teddysun.com>
 # Reference URL:
 # https://github.com/caddyserver/caddy
 # https://github.com/caddyserver/forwardproxy
 
-FROM alpine:3.13
+FROM alpine:3.14
 LABEL maintainer="Teddysun <i@teddysun.com>"
 
 WORKDIR /root
diff --git a/docker/caddy/Dockerfile.architecture b/docker/caddy/Dockerfile.architecture
index 4dcf1f7..0e9a6b1 100644
--- a/docker/caddy/Dockerfile.architecture
+++ b/docker/caddy/Dockerfile.architecture
@@ -1,10 +1,10 @@
 # Dockerfile for caddy v1.0.5 based alpine
-# Copyright (C) 2020 Teddysun <i@teddysun.com>
+# Copyright (C) 2021 Teddysun <i@teddysun.com>
 # Reference URL:
 # https://github.com/caddyserver/caddy
 # https://github.com/caddyserver/forwardproxy
 
-FROM --platform=${TARGETPLATFORM} alpine:3.13
+FROM --platform=${TARGETPLATFORM} alpine:3.14
 LABEL maintainer="Teddysun <i@teddysun.com>"
 
 ARG TARGETPLATFORM
diff --git a/docker/caddy/caddy.sh b/docker/caddy/caddy.sh
index 7df1448..abdc9c8 100644
--- a/docker/caddy/caddy.sh
+++ b/docker/caddy/caddy.sh
@@ -2,7 +2,7 @@
 #
 # This is a Shell script for caddy based alpine with Docker image
 # 
-# Copyright (C) 2019 - 2020 Teddysun <i@teddysun.com>
+# Copyright (C) 2019 - 2021 Teddysun <i@teddysun.com>
 #
 # Reference URL:
 # https://github.com/caddyserver/caddy