diff --git a/Dockerfile b/Dockerfile
index 5364411..d765486 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,14 @@
 # Codecov @codecov
 
-FROM ubuntu:latest
+FROM alpine:3.10
 
 WORKDIR /app
 COPY . /app
 
-RUN apt update && apt install -y curl git mercurial
+RUN apk add --no-cache \
+    curl \
+    git \
+    mercurial
 
 RUN chmod +x /app/entrypoint.sh