diff --git a/slides/containers/Compose_For_Dev_Stacks.md b/slides/containers/Compose_For_Dev_Stacks.md
index 0bf5cf65..27045a10 100644
--- a/slides/containers/Compose_For_Dev_Stacks.md
+++ b/slides/containers/Compose_For_Dev_Stacks.md
@@ -157,8 +157,6 @@ Here is the file used in the demo:
 
 .small[
 ```yaml
-version: "3"
-
 services:
   www:
     build: www