diff --git a/Dockerfile b/Dockerfile
index 91d824c..f3d6e7f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,6 @@ FROM elixir:1.5
 RUN apt-get update && apt-get install -y inotify-tools
 WORKDIR /elixir-koans
 ADD . /elixir-koans/
-RUN mix local.hex --force 
-RUN mix deps.get 
+RUN mix local.hex --force
+RUN mix deps.get
 CMD mix meditate