diff --git a/homeassistant/components/mill/manifest.json b/homeassistant/components/mill/manifest.json
index 6316eb72096..44c1136b7d5 100644
--- a/homeassistant/components/mill/manifest.json
+++ b/homeassistant/components/mill/manifest.json
@@ -6,5 +6,5 @@
   "documentation": "https://www.home-assistant.io/integrations/mill",
   "iot_class": "local_polling",
   "loggers": ["mill", "mill_local"],
-  "requirements": ["millheater==0.12.2", "mill-local==0.3.0"]
+  "requirements": ["millheater==0.12.3", "mill-local==0.3.0"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 96e9584b637..2962ceaa2f6 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1405,7 +1405,7 @@ microBeesPy==0.3.5
 mill-local==0.3.0
 
 # homeassistant.components.mill
-millheater==0.12.2
+millheater==0.12.3
 
 # homeassistant.components.minio
 minio==7.1.12
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index d5da51dc683..eba4cc84efc 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1177,7 +1177,7 @@ microBeesPy==0.3.5
 mill-local==0.3.0
 
 # homeassistant.components.mill
-millheater==0.12.2
+millheater==0.12.3
 
 # homeassistant.components.minio
 minio==7.1.12