diff --git a/Dockerfile b/Dockerfile
index d8abef2..466df3e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,7 @@
 FROM debian:bullseye-slim as builder
-RUN apt update
 WORKDIR /data
 COPY . .
-RUN apt-get install npm
+RUN apt-get update && apt-get install npm
 RUN npm install -i package.json \
 	&& npm run build
 FROM alpine