diff --git a/custom_components/sinapsi_alfa/config_flow.py b/custom_components/sinapsi_alfa/config_flow.py
index 23ae319..7ee6a1b 100644
--- a/custom_components/sinapsi_alfa/config_flow.py
+++ b/custom_components/sinapsi_alfa/config_flow.py
@@ -120,9 +120,9 @@ async def async_step_user(self, user_input=None):
                         title=user_input[CONF_NAME], data=user_input
                     )
                 else:
-                    errors[
-                        CONF_HOST
-                    ] = "Connection to device failed (S/N not retreived)"
+                    errors[CONF_HOST] = (
+                        "Connection to device failed (S/N not retreived)"
+                    )
 
         return self.async_show_form(
             step_id="user",
diff --git a/requirements.txt b/requirements.txt
index 5425e75..1c3b908 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 colorlog==6.8.2
 homeassistant==2024.1.2
 pip>=21.0,<24.1
-ruff==0.2.1
+ruff==0.3.0
 pymodbus>=3.5
\ No newline at end of file