diff --git a/Dockerfile b/Dockerfile
index a8a44e5..47757b3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
 FROM golang:1.13-alpine
 ENV GO111MODULE=on
-RUN apk --no-cache add build-base git
+RUN apk --no-cache add build-base git && go install github.com/magefile/mage