diff --git a/components/sensor/index.rst b/components/sensor/index.rst
index ea1714255..515b09762 100644
--- a/components/sensor/index.rst
+++ b/components/sensor/index.rst
@@ -392,7 +392,7 @@ Configuration variables:
 ******************************
 
 A simple `exponential moving average
-<https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average>`__ over the last few
+<https://www.itl.nist.gov/div898/software/dataplot/refman2/auxillar/quantile.htm>`__ over the last few
 values. It can be used to have a short update interval on the sensor but only push
 out an average on a specific interval (thus increasing resolution).