diff --git a/homeassistant/components/isy994/manifest.json b/homeassistant/components/isy994/manifest.json
index ab0367f3db4..5cd3bb73a89 100644
--- a/homeassistant/components/isy994/manifest.json
+++ b/homeassistant/components/isy994/manifest.json
@@ -24,7 +24,7 @@
   "integration_type": "hub",
   "iot_class": "local_push",
   "loggers": ["pyisy"],
-  "requirements": ["pyisy==3.2.0"],
+  "requirements": ["pyisy==3.4.0"],
   "ssdp": [
     {
       "manufacturer": "Universal Devices Inc.",
diff --git a/requirements_all.txt b/requirements_all.txt
index 82b48131216..d78bcc3e8eb 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2047,7 +2047,7 @@ pyiskra==0.1.15
 pyiss==1.0.1
 
 # homeassistant.components.isy994
-pyisy==3.2.0
+pyisy==3.4.0
 
 # homeassistant.components.itach
 pyitachip2ir==0.0.7
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 7e942673898..3391c5bfa23 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1668,7 +1668,7 @@ pyiskra==0.1.15
 pyiss==1.0.1
 
 # homeassistant.components.isy994
-pyisy==3.2.0
+pyisy==3.4.0
 
 # homeassistant.components.ituran
 pyituran==0.1.4