diff --git a/Dockerfile b/Dockerfile
index 1a3a484..a6fb4e2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ EXPOSE 9090
 WORKDIR /go/src/osgrid-server
 
 COPY go.mod *.go ./
-RUN go install -v ./... && sha256sum /go/bin/osgrid-server
+RUN go install -v ./... && sha256sum /go/bin/osgrid-server && cd /go && rm -rf /go/src /go/pkg
 
 CMD [ "/go/bin/osgrid-server" ]