diff --git a/README.md b/README.md
index df01faf..1f6fb06 100755
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@ Deep learning using the [ABIDE data](http://fcon_1000.projects.nitrc.org/indi/ab
 
 ## Environment Setup
 
+Please be aware that this code is meant to be run with Python 3.
 Download the packages from `requirements.txt`:
 ```bash
 pip install -r requirements.txt