diff --git a/heating-temperature-probes.yaml b/heating-temperature-probes.yaml
index 89f6f54..31f8d07 100644
--- a/heating-temperature-probes.yaml
+++ b/heating-temperature-probes.yaml
@@ -74,7 +74,7 @@ sensor:
   - platform: dallas_temp
     name: Secondary circuit return
     update_interval: 300s
-    address: 0x490417c14146ff28
+    address: 0xec0517c3d1bfff28 
     filters:
       - or:
         - throttle: 60s