diff --git a/readme.md b/readme.md
index 37595cd..8912ab0 100644
--- a/readme.md
+++ b/readme.md
@@ -26,7 +26,7 @@ Initial Version
 ### V 1.1 (10.03.2021)
 - updated UI with user feedback
 
-### V 1.15 (27.03.2021)
+### V 1.1.1 (27.03.2021)
 - added documentation
 - tweaks and ToDo's after testing with all devices connected (communication with PSUs is too slow)
 - UI tweaks to better fit smaller display of cleanroom PC
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