diff --git a/Dockerfile b/Dockerfile
index 73aa25c..03a1d6f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM elixir AS build
+FROM elixir:alpine AS build
 
 # install build dependencies
 RUN apk add --no-cache build-base npm git curl py-pip rust cargo