diff --git a/Dockerfile b/Dockerfile
index d5e8bbb..16df203 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,9 @@
-FROM node:12
+FROM node:12.18.3-alpine
+RUN apk add ffmpeg
 
-COPY package.json /app
-RUN npm install
 COPY . /app
+WORKDIR /app
+RUN npm install
 RUN npm run postinstall
 
 CMD node parseENV.js