diff --git a/homeassistant/components/cloud/manifest.json b/homeassistant/components/cloud/manifest.json
index 16904da3867..085be41e5e7 100644
--- a/homeassistant/components/cloud/manifest.json
+++ b/homeassistant/components/cloud/manifest.json
@@ -13,6 +13,6 @@
   "integration_type": "system",
   "iot_class": "cloud_push",
   "loggers": ["acme", "hass_nabucasa", "snitun"],
-  "requirements": ["hass-nabucasa==1.4.0"],
+  "requirements": ["hass-nabucasa==1.5.1"],
   "single_config_entry": true
 }
diff --git a/homeassistant/package_constraints.txt b/homeassistant/package_constraints.txt
index c164db6a85b..e1a44298fd3 100644
--- a/homeassistant/package_constraints.txt
+++ b/homeassistant/package_constraints.txt
@@ -36,7 +36,7 @@ fnv-hash-fast==1.6.0
 go2rtc-client==0.2.1
 ha-ffmpeg==3.2.2
 habluetooth==5.7.0
-hass-nabucasa==1.4.0
+hass-nabucasa==1.5.1
 hassil==3.4.0
 home-assistant-bluetooth==1.13.1
 home-assistant-frontend==20251029.0
diff --git a/pyproject.toml b/pyproject.toml
index 3218d1679ef..66e3132b217 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,7 +48,7 @@ dependencies = [
   "fnv-hash-fast==1.6.0",
   # hass-nabucasa is imported by helpers which don't depend on the cloud
   # integration
-  "hass-nabucasa==1.4.0",
+  "hass-nabucasa==1.5.1",
   # When bumping httpx, please check the version pins of
   # httpcore, anyio, and h11 in gen_requirements_all
   "httpx==0.28.1",
diff --git a/requirements.txt b/requirements.txt
index 7e2aa807d2c..993913944c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ certifi>=2021.5.30
 ciso8601==2.3.3
 cronsim==2.6
 fnv-hash-fast==1.6.0
-hass-nabucasa==1.4.0
+hass-nabucasa==1.5.1
 httpx==0.28.1
 home-assistant-bluetooth==1.13.1
 ifaddr==0.2.0
diff --git a/requirements_all.txt b/requirements_all.txt
index a77a605ef3f..f57e0666b5d 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1160,7 +1160,7 @@ habiticalib==0.4.6
 habluetooth==5.7.0
 
 # homeassistant.components.cloud
-hass-nabucasa==1.4.0
+hass-nabucasa==1.5.1
 
 # homeassistant.components.splunk
 hass-splunk==0.1.1
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 80cf9165d75..e7aa835c8fc 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1021,7 +1021,7 @@ habiticalib==0.4.6
 habluetooth==5.7.0
 
 # homeassistant.components.cloud
-hass-nabucasa==1.4.0
+hass-nabucasa==1.5.1
 
 # homeassistant.components.assist_satellite
 # homeassistant.components.conversation