diff --git a/docker/Dockerfile b/docker/Dockerfile
index ebc257ce79..48c28e072c 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,7 +1,7 @@
 FROM golang:1.6
 RUN apt-get update \
     && apt-get upgrade -y \
-    && apt-get install -y git openssh-client gcc
+    && apt-get install -y git openssh-client gcc nmap
 WORKDIR /app
 RUN go get github.com/kotakanbe/go-cve-dictionary
 RUN go get github.com/future-architect/vuls