diff --git a/docs/Develop.md b/docs/Develop.md
index 1e9bf08..1834870 100644
--- a/docs/Develop.md
+++ b/docs/Develop.md
@@ -5,8 +5,8 @@ Before create a pull request check your code with Prospector.
 You can install it with
 
 ```
-pip3 install -r requirements-dev.txt```
-#Then on the root of the git project:
+poetry install --no-root```
+#Then in the root of the git project:
 prospector
 ```
 ## API documentation
@@ -26,6 +26,6 @@ Then you can use mitmproxy for example:
 mitmproxy --set client_certs=MWPMYMA1.pem
 ```
 
-For being able to see trafic from android app you need a rooted phone, you can use an android emulator then follow this:
+For being able to see traffic from the android app you need a rooted phone, you can use an android emulator then follow this:
 https://docs.mitmproxy.org/stable/howto-install-system-trusted-ca-android/