diff --git a/Dockerfile b/Dockerfile
index d8da3e7..ae6e8c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.23.0@:51183f2cfa6320055da30872f211093f9ff1d3cf06f39a0bdb212314c5dc7375 AS base
+FROM alpine:3.23.0@sha256:51183f2cfa6320055da30872f211093f9ff1d3cf06f39a0bdb212314c5dc7375 AS base
 
 RUN apk update && apk add --no-cache --upgrade rsync openssh openssl busybox