diff --git a/docker-intro/basic/Dockerfile b/docker-intro/basic/Dockerfile
index a28eedd..7ac3a7d 100644
--- a/docker-intro/basic/Dockerfile
+++ b/docker-intro/basic/Dockerfile
@@ -1,4 +1,3 @@
 FROM <EXISTING IMAGE>
 RUN <INSTALL CMDS FROM SHELL>
-RUN <INSTALL CMDS FROM SHELL>
 CMD <CMD TO RUN BY DEFAULT>
diff --git a/episodes/files/docker-intro.zip b/episodes/files/docker-intro.zip
index 92c95d3..2ddd9bc 100644
Binary files a/episodes/files/docker-intro.zip and b/episodes/files/docker-intro.zip differ