diff --git a/homeassistant/components/modbus/manifest.json b/homeassistant/components/modbus/manifest.json
index 0833292a7e3..f5c7bf2df4e 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==2.5.1"],
+  "requirements": ["pymodbus==2.5.2"],
   "codeowners": ["@adamchengtkc", "@janiversen", "@vzahradnik"],
   "iot_class": "local_polling"
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 4c404819e61..bdd9b8a1d21 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1557,7 +1557,7 @@ pymitv==1.4.3
 pymochad==0.2.0
 
 # homeassistant.components.modbus
-pymodbus==2.5.1
+pymodbus==2.5.2
 
 # homeassistant.components.monoprice
 pymonoprice==0.3
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index efa49b9afbe..bddd762ff90 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -865,7 +865,7 @@ pymfy==0.9.3
 pymochad==0.2.0
 
 # homeassistant.components.modbus
-pymodbus==2.5.1
+pymodbus==2.5.2
 
 # homeassistant.components.monoprice
 pymonoprice==0.3