diff --git a/build-number.txt b/build-number.txt
index 964480f..1cf253f 100644
--- a/build-number.txt
+++ b/build-number.txt
@@ -1 +1 @@
-213
+238
diff --git a/src/light_sensor.c b/src/light_sensor.c
index 4c2d42c..0a0cba1 100644
--- a/src/light_sensor.c
+++ b/src/light_sensor.c
@@ -80,12 +80,6 @@ void LightSensor_Poll(void)
         LightSensor_AbsoluteBrightness = LIGHTSENSOR_LAMBDA * LightSensor_AbsoluteBrightness
             + (1.0f - LIGHTSENSOR_LAMBDA) * brightness;
 
-        // Slowly move maximum and minimum back to 0.0 and 1.0, respectively
-        LightSensor_MaximumBrightness *= LIGHTSENSOR_ALPHA;
-        LightSensor_MinimumBrightness = 1.0f - LightSensor_MinimumBrightness;
-        LightSensor_MinimumBrightness *= LIGHTSENSOR_ALPHA;
-        LightSensor_MinimumBrightness = 1.0f - LightSensor_MinimumBrightness;
-
         // Scale and saturate to get relative brightness value
         float range = LightSensor_MaximumBrightness
             - LightSensor_MinimumBrightness;
diff --git a/src/light_sensor.h b/src/light_sensor.h
index e94814f..f3884f9 100644
--- a/src/light_sensor.h
+++ b/src/light_sensor.h
@@ -11,9 +11,6 @@
 // 'Forgetting factor' of the rolling brightness average
 #define LIGHTSENSOR_LAMBDA      0.95f
 
-// 'Forgetting factor' for maximum and minimum brightness
-#define LIGHTSENSOR_ALPHA       0.999f
-
 // Bounds for converting absolute to relative brightness: Consider everything
 // near the minimum or maximum 0.0 or 1.0, respectively
 #define LIGHTSENSOR_LOW_BOUND   0.1f