diff --git a/Dockerfile b/Dockerfile
index dfa64dd..5b910a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
-FROM node:18-slim
+FROM node:18-alpine
 
 ENV NODE_ENV=production
 
 # use a proper pid 1, see https://blog.ghaiklor.com/2018/02/20/avoid-running-nodejs-as-pid-1-under-docker-images/ and https://github.com/krallin/tini
 # otherwise, e.g., `docker stop` will not work properly.
-RUN apt update && apt install -y tini
+RUN apk add tini
 
 COPY ["./cli/target/scala-2.13/scalajs-bundler/main/fun-local-env.js", "/bin/fun-local-env"]