diff --git a/homeassistant/components/workday/binary_sensor.py b/homeassistant/components/workday/binary_sensor.py
index 73fa8133c9f..789fab71cf8 100644
--- a/homeassistant/components/workday/binary_sensor.py
+++ b/homeassistant/components/workday/binary_sensor.py
@@ -14,7 +14,7 @@ _LOGGER = logging.getLogger(__name__)
 # List of all countries currently supported by holidays
 # There seems to be no way to get the list out at runtime
 ALL_COUNTRIES = [
-    'Argentina', 'AR', 'Australia', 'AU', 'Austria', 'AT',
+    'Argentina', 'AR', 'Aruba', 'AW', 'Australia', 'AU', 'Austria', 'AT',
     'Brazil', 'BR', 'Belarus', 'BY', 'Belgium', 'BE', 'Bulgaria', 'BG',
     'Canada', 'CA', 'Colombia', 'CO', 'Croatia', 'HR', 'Czech', 'CZ',
     'Denmark', 'DK',
diff --git a/homeassistant/components/workday/manifest.json b/homeassistant/components/workday/manifest.json
index 889ce4059be..ba8712f0575 100644
--- a/homeassistant/components/workday/manifest.json
+++ b/homeassistant/components/workday/manifest.json
@@ -3,8 +3,8 @@
   "name": "Workday",
   "documentation": "https://www.home-assistant.io/components/workday",
   "requirements": [
-    "holidays==0.9.10"
+    "holidays==0.9.11"
   ],
   "dependencies": [],
   "codeowners": []
-}
+}
\ No newline at end of file
diff --git a/requirements_all.txt b/requirements_all.txt
index b8b60687025..ca41c7fdff2 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -619,7 +619,7 @@ hlk-sw16==0.0.7
 hole==0.3.0
 
 # homeassistant.components.workday
-holidays==0.9.10
+holidays==0.9.11
 
 # homeassistant.components.frontend
 home-assistant-frontend==20190721.1
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 2274bc65358..cfc6e93e620 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -162,7 +162,7 @@ hbmqtt==0.9.4
 hdate==0.8.8
 
 # homeassistant.components.workday
-holidays==0.9.10
+holidays==0.9.11
 
 # homeassistant.components.frontend
 home-assistant-frontend==20190721.1