diff --git a/docs/source/developer_guide.rst b/docs/source/developer_guide.rst
index e51246b..328b0a5 100644
--- a/docs/source/developer_guide.rst
+++ b/docs/source/developer_guide.rst
@@ -17,7 +17,7 @@ require in order to run tests:
 
 .. code-block:: console
 
-    pip install -r dev-requirements.txt
+    pip install -e ".[dev]"
 
 At last, you can use pytest to run the tests