diff --git a/README.md b/README.md
index e53d015..541ddac 100644
--- a/README.md
+++ b/README.md
@@ -18,5 +18,5 @@ pip install requests
 ----
 
 ```shell
-PYTHONPATH=./.venv/lib/python3.10/site-packages/ ./ShowMyIp.py 
+PYTHONPATH=./.venv/lib/python3.10/site-packages/ ./show_my_ip.py 
 ```
diff --git a/ClassPerson.py b/class_person.py
similarity index 100%
rename from ClassPerson.py
rename to class_person.py
diff --git a/HelloWorld.py b/hello_world.py
similarity index 100%
rename from HelloWorld.py
rename to hello_world.py
diff --git a/ShowMyIp.py b/show_my_ip.py
similarity index 100%
rename from ShowMyIp.py
rename to show_my_ip.py