diff --git a/Dockerfile b/Dockerfile
index f779552..ab7a797 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,7 @@
 FROM alpine:3
 
+RUN apk add netcat-openbsd iputils
+
 COPY ./timeout /bin/timeout
 
 ENTRYPOINT ["/bin/timeout"]