diff --git a/Dockerfile b/Dockerfile
index d39ae42..6a2dd21 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,10 +2,12 @@ FROM golang:1.9-alpine
 
 COPY . ${GOPATH}/src/git.icedream.tech/icedream/pixelqr
 RUN cd "${GOPATH}/src/git.icedream.tech/icedream/pixelqr" \
+	&& apk add --no-cache --virtual .build-deps git \
 	&& go get -v -d ./... \
 	&& go build \
 	&& mv testssh /usr/local/bin \
 	&& cd / \
-	&& rm -r ${GOPATH}
+	&& rm -r ${GOPATH} \
+	&& apk del --no-cache .build-deps
 
 CMD ["testssh"]