diff --git a/README.md b/README.md
index 6cbff57..0bfdce9 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@ To run server you need to install
 - hypercorn - "pip install hypercorn"
 - fastapi - "pip install fastapi"
 - requests - "pip install requests"
+- aiofiles - "pip install aiofiles"
 
 then run by command - "hypercorn main:app --bind <IP:port>"
 To connect to another rpi you need to edit settings.json with different ID and fill heartbeat table.