diff --git a/Dockerfile b/Dockerfile
index 06b00c5..3d11079 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 ARG ALPINE_VERSION=3.18.3
 ARG BASE_IMAGE=gitea.nulo.in/sutty/sutty
-FROM ${BASE_IMAGE}:${ALPINE_VERSION} as build
+FROM ${BASE_IMAGE}:${ALPINE_VERSION} AS build
 
 COPY ./monitrc /etc/monitrc
 RUN chmod 600 /etc/monitrc