diff --git a/README.md b/README.md
index be8649f..98fe10d 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,9 @@ Values can be set case insensitive (DEBUG, debug, Debug).
 - crit
 - critical
 
+## Requirements 
+- Python 3.10 or higher
+
 ## Usage example
 ```python
 # Setting LOG_LEVEL with `os.environ` is only necessary if environment variable has not been set before (e.g. outside Docker)