diff --git a/README.md b/README.md
index fe6799b..a672616 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ We are working on system, that will help tourists in cities to get information a
 
 # Software
 - python 3.9 based server with basic web interface
-- python 3.x based mobile app with help of android studio
+- python 3.8.6 based mobile app with help of android studio
 
 # Known issues
 - no code writen (needs to be fixed app does not work because of it)