diff --git a/Dockerfile b/Dockerfile
index d53f27bf..5ae07007 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,6 +8,7 @@ ENV GOROOT  /usr/src/go
 ADD . $PKGPATH
 RUN cd $PKGPATH && go get -d && make
 
+USER       nobody
 WORKDIR    /alertmanager
 ENTRYPOINT [ "/go/src/github.com/prometheus/alertmanager/alertmanager" ]
 EXPOSE     9093