diff --git a/Readme.md b/Readme.md
index 814da89..30b289b 100644
--- a/Readme.md
+++ b/Readme.md
@@ -129,7 +129,7 @@ _**has_output_cover_owv_1_yes_0_no** :_ \[_default=0_\] If set to **1** rather t
 
 ## 4 - Older version
 
-The older version of the mask - _which was the 5th version_ - can be made either to work with standard 40mm cartrdige (as the newer version), or an integrated canister which makes it more confortable to use.
+The older version of the mask - _which was the 6th version (v6)_ - can be made either to work with standard 40mm cartrdige (as the newer version), or an integrated canister which makes it more confortable to use.
 
 As this version is not the main supported version, we will not go into detail into explanation, and we will foccus on differences with the latest version.