diff --git a/homeassistant/components/knx/manifest.json b/homeassistant/components/knx/manifest.json
index b29e44490e9..a7436ef1ae3 100644
--- a/homeassistant/components/knx/manifest.json
+++ b/homeassistant/components/knx/manifest.json
@@ -3,7 +3,7 @@
   "name": "KNX",
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/knx",
-  "requirements": ["xknx==1.2.0"],
+  "requirements": ["xknx==1.2.1"],
   "codeowners": ["@Julius2342", "@farmio", "@marvin-w"],
   "quality_scale": "platinum",
   "iot_class": "local_push",
diff --git a/requirements_all.txt b/requirements_all.txt
index bc363d39203..4b9242fe2a5 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2563,7 +2563,7 @@ xboxapi==2.0.1
 xiaomi-ble==0.10.0
 
 # homeassistant.components.knx
-xknx==1.2.0
+xknx==1.2.1
 
 # homeassistant.components.bluesound
 # homeassistant.components.fritz
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index f7c09893df4..506a740b2aa 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1776,7 +1776,7 @@ xbox-webapi==2.0.11
 xiaomi-ble==0.10.0
 
 # homeassistant.components.knx
-xknx==1.2.0
+xknx==1.2.1
 
 # homeassistant.components.bluesound
 # homeassistant.components.fritz