diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 006a20a..adcf964 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -19,8 +19,8 @@ This project should be developed against its minimum compatible version as descr
 To install the runtime and test requirements:
 
 ```
-poetry shell
 poetry install
+eval $(poetry env activate)
 ```
 
 ### Testing