diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index dad541d..eec89a9 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -3,8 +3,7 @@
 ## 1. Setup
 
 ```bash
-python -m venv .venv
-source .venv/bin/activate
+source ~/.pyenv/sci/bin/activate
 pip install -e ".[dev]"
 ```