diff --git a/homeassistant/components/opentherm_gw/__init__.py b/homeassistant/components/opentherm_gw/__init__.py
index acb277c0ef5..1476363c6bd 100644
--- a/homeassistant/components/opentherm_gw/__init__.py
+++ b/homeassistant/components/opentherm_gw/__init__.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_send
 
 import homeassistant.helpers.config_validation as cv
 
-REQUIREMENTS = ['pyotgw==0.4b2']
+REQUIREMENTS = ['pyotgw==0.4b3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/requirements_all.txt b/requirements_all.txt
index 31b62eb824b..281b0434148 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1198,7 +1198,7 @@ pyoppleio==1.0.5
 pyota==2.0.5
 
 # homeassistant.components.opentherm_gw
-pyotgw==0.4b2
+pyotgw==0.4b3
 
 # homeassistant.auth.mfa_modules.notify
 # homeassistant.auth.mfa_modules.totp