diff --git a/esphome/esp-underhouselights.yaml b/esphome/esp-underhouselights.yaml
index 9fde97b..eebe907 100644
--- a/esphome/esp-underhouselights.yaml
+++ b/esphome/esp-underhouselights.yaml
@@ -304,40 +304,40 @@ mqtt:
   on_message:
     # Relay 1 control
     - topic: "${mqtt_local_command_topic}/relay1/set"
-      payload: "ON"
+      payload: "On"
       then:
         - switch.turn_on: relay1
     - topic: "${mqtt_local_command_topic}/relay1/set"
-      payload: "OFF"
+      payload: "Off"
       then:
         - switch.turn_off: relay1
 
     # Relay 2 control
     - topic: "${mqtt_local_command_topic}/relay2/set"
-      payload: "ON"
+      payload: "On"
       then:
         - switch.turn_on: relay2
     - topic: "${mqtt_local_command_topic}/relay2/set"
-      payload: "OFF"
+      payload: "Off"
       then:
         - switch.turn_off: relay2
 
     # Relay 3 control
     - topic: "${mqtt_local_command_topic}/relay3/set"
-      payload: "ON"
+      payload: "On"
       then:
         - switch.turn_on: relay3
     - topic: "${mqtt_local_command_topic}/relay3/set"
-      payload: "OFF"
+      payload: "Off"
       then:
         - switch.turn_off: relay3
 
     # Relay 4 control
     - topic: "${mqtt_local_command_topic}/relay4/set"
-      payload: "ON"
+      payload: "On"
       then:
         - switch.turn_on: relay4
     - topic: "${mqtt_local_command_topic}/relay4/set"
-      payload: "OFF"
+      payload: "Off"
       then:
         - switch.turn_off: relay4
\ No newline at end of file