diff --git a/homeassistant/components/modbus/manifest.json b/homeassistant/components/modbus/manifest.json
index a68964b405a..a9a5a13c98b 100644
--- a/homeassistant/components/modbus/manifest.json
+++ b/homeassistant/components/modbus/manifest.json
@@ -2,7 +2,7 @@
   "domain": "modbus",
   "name": "Modbus",
   "documentation": "https://www.home-assistant.io/integrations/modbus",
-  "requirements": ["pymodbus==3.1.0"],
+  "requirements": ["pymodbus==3.1.1"],
   "codeowners": ["@adamchengtkc", "@janiversen", "@vzahradnik"],
   "quality_scale": "gold",
   "iot_class": "local_polling",
diff --git a/requirements_all.txt b/requirements_all.txt
index cdefaf956fa..57050197174 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1780,7 +1780,7 @@ pymitv==1.4.3
 pymochad==0.2.0
 
 # homeassistant.components.modbus
-pymodbus==3.1.0
+pymodbus==3.1.1
 
 # homeassistant.components.monoprice
 pymonoprice==0.4
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 90df240ed00..8a68161f77a 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1278,7 +1278,7 @@ pymeteoclimatic==0.0.6
 pymochad==0.2.0
 
 # homeassistant.components.modbus
-pymodbus==3.1.0
+pymodbus==3.1.1
 
 # homeassistant.components.monoprice
 pymonoprice==0.4