diff --git a/Dockerfile b/Dockerfile
index 4f0d1a8..cf0d319 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,11 @@
-FROM caddy:2.7.5-builder-alpine AS builder
+FROM caddy:2.8.4-builder-alpine AS builder
 
 ARG VERSION
 
 RUN xcaddy build \
     --with github.com/Elegant996/scgi-transport@v1.0.3
 
-FROM caddy:2.7.5-alpine
+FROM caddy:2.8.4-alpine
 
 COPY --from=builder /usr/bin/caddy /usr/bin/caddy