diff --git a/requirements.txt b/requirements.txt
index bebc21b3464..4951e12dab7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -67,3 +67,6 @@ hikvision>=0.4
 
 # console log coloring
 colorlog>=2.6.0
+
+# Forecast.io Bindings (sensor.forecast)
+python-forecastio>=1.3.3