diff --git a/Makefile b/Makefile
index d817d79..3e23092 100644
--- a/Makefile
+++ b/Makefile
@@ -38,7 +38,7 @@ safety:	## Check project and dependencies with safety https://github.com/pyupio/
 
 .PHONY: py-upgrade
 py-upgrade:	## Upgrade project py files with pyupgrade library for python version 3.10
-	pyupgrade --py310-plus `find app -name "*.py"`
+	pyupgrade --py311-plus `find app -name "*.py"`
 
 .PHONY: lint
 lint:  ## Lint project code.
diff --git a/README.md b/README.md
index 76a0a1c..3fc5533 100644
--- a/README.md
+++ b/README.md
@@ -56,3 +56,13 @@ Hope you enjoy it.
 - 3 OCT 2022 poetry added to project
 - 12 NOV 2022 ruff implemented to project as linting tool
 - 14 FEB 2023 bump project to Python 3.11
+
+### Local development with poetry
+
+```shell
+pyenv install 3.11 && pyenv local 3.11
+```
+```shell
+poetry install
+```
+