diff --git a/Dockerfile b/Dockerfile
index 980bbda..bedc442 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,4 @@
 FROM debian:10-slim
-RUN apt-get update && apt-get -y install cowsay procps && apt-get clean
+RUN apt-get update && apt-get -y install cowsay procps iputils-ping \
+    && apt-get clean
 CMD ["/usr/games/cowsay", "Hej alla! Docker fungerar!"]