diff --git a/README.md b/README.md
index f40710b..5a62879 100644
--- a/README.md
+++ b/README.md
@@ -16,13 +16,19 @@ code.
 
 ## Running
 
-## Linux
+### Prerequisites
+
+You need at least CPython 3.11 to run the interactive code runner script.
+
+You can download it from [here](https://www.python.org/downloads/).
+
+### Linux
 
 ```bash
 ./run.sh
 ```
 
-## Windows
+### Windows
 
 ```bat
 run.bat