diff --git a/readme.md b/readme.md
index bb67608..f06a797 100644
--- a/readme.md
+++ b/readme.md
@@ -20,7 +20,6 @@ It is used to exchange information between the host and guest, and to execute co
 Via Docker Compose:
 
 ```yaml
-version: "3"
 services:
   qemu:
     container_name: qemu