diff --git a/homeassistant/components/forecast_solar/manifest.json b/homeassistant/components/forecast_solar/manifest.json
index 769bda56adc..66796a44dc4 100644
--- a/homeassistant/components/forecast_solar/manifest.json
+++ b/homeassistant/components/forecast_solar/manifest.json
@@ -6,5 +6,5 @@
   "documentation": "https://www.home-assistant.io/integrations/forecast_solar",
   "integration_type": "service",
   "iot_class": "cloud_polling",
-  "requirements": ["forecast-solar==4.1.0"]
+  "requirements": ["forecast-solar==4.2.0"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 2481a3288eb..c510414d92e 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -958,7 +958,7 @@ fnv-hash-fast==1.5.0
 foobot_async==1.0.0
 
 # homeassistant.components.forecast_solar
-forecast-solar==4.1.0
+forecast-solar==4.2.0
 
 # homeassistant.components.fortios
 fortiosapi==1.0.5
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index e13b157579a..0f3622fe0b1 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -818,7 +818,7 @@ fnv-hash-fast==1.5.0
 foobot_async==1.0.0
 
 # homeassistant.components.forecast_solar
-forecast-solar==4.1.0
+forecast-solar==4.2.0
 
 # homeassistant.components.freebox
 freebox-api==1.2.2