diff --git a/chicken_door.ino b/chicken_door.ino
index 3e860e1..db8a811 100644
--- a/chicken_door.ino
+++ b/chicken_door.ino
@@ -29,7 +29,7 @@
 #define RAISE_DOOR     4
 
 #define BRIGHTNESS_SIZE  3
-#define BRIGHT_THRESHOLD 700
+#define BRIGHT_THRESHOLD 600
 #define OPEN_DELAY       6250
 #define HYSTERESIS       50