diff --git a/Dockerfile b/Dockerfile
index b3064281..c8384e3b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,16 @@
-FROM node:18-bullseye-slim
+FROM node:18-alpine
+
 WORKDIR /app
 
-RUN apt-get update
-RUN apt-get install -y git
-RUN rm -rf /var/lib/apt/lists/*
+RUN apk update \
+    && apk add --no-cache git
 
 COPY package*.json ./
 RUN npm install
 
-RUN git clone -n https://github.com/wukko/cobalt.git --depth 1 && mv cobalt/.git ./ && rm -rf cobalt
+RUN git clone -n https://github.com/wukko/cobalt.git --depth 1 \
+    && mv cobalt/.git ./ \
+    && rm -rf cobalt
 
 COPY . .
 EXPOSE 9000