diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f2611e..ca0bee6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Fixed pipeline build step by limiting Gitversion to 5.* version.
+- Change default integration test region from `East US` to `West US 3` due to
+  quota limitations.
 
 ## [5.0.0] - 2024-06-07
 
diff --git a/tests/Integration/CosmosDB.integration.Tests.ps1 b/tests/Integration/CosmosDB.integration.Tests.ps1
index 356ab8e..89b9a79 100644
--- a/tests/Integration/CosmosDB.integration.Tests.ps1
+++ b/tests/Integration/CosmosDB.integration.Tests.ps1
@@ -49,7 +49,7 @@ if ([System.String]::IsNullOrEmpty($script:testBuildSystem))
 
 $script:testResourceGroupName = ('cdbtestrgp-{0}-{1}-{2}' -f $script:testRandomName,$script:testBuildSystem,$script:testBuildBranch)
 $script:testAccountName = ('cdbtest{0}' -f $script:testRandomName)
-$script:testLocation = 'East US'
+$script:testLocation = 'West US 3'
 $script:testCorsAllowedOrigins = @('https://www.contoso.com', 'https://www.fabrikam.com')
 $script:testOffer = 'testOffer'
 $script:testDatabase = 'testDatabase'
diff --git a/tests/TestHelper/AzureDeploy/AzureDeploy.bicep b/tests/TestHelper/AzureDeploy/AzureDeploy.bicep
index 04db513..43293fb 100644
--- a/tests/TestHelper/AzureDeploy/AzureDeploy.bicep
+++ b/tests/TestHelper/AzureDeploy/AzureDeploy.bicep
@@ -2,7 +2,7 @@ targetScope = 'subscription'
 
 param resourceGroupName string
 param accountName string
-param location string = 'East US'
+param location string = 'West US 3'
 param principalId string
 @allowed([
   '00000000-0000-0000-0000-000000000001'// Built-in role 'Azure Cosmos DB Built-in Data Reader'
diff --git a/tests/TestHelper/AzureDeploy/CosmosDb.bicep b/tests/TestHelper/AzureDeploy/CosmosDb.bicep
index 989366b..255c82c 100644
--- a/tests/TestHelper/AzureDeploy/CosmosDb.bicep
+++ b/tests/TestHelper/AzureDeploy/CosmosDb.bicep
@@ -1,5 +1,5 @@
 param accountName string
-param location string = 'East US'
+param location string = 'West US 3'
 param principalId string
 @allowed([
   '00000000-0000-0000-0000-000000000001'// Built-in role 'Azure Cosmos DB Built-in Data Reader'
diff --git a/tests/TestHelper/TestHelper.psm1 b/tests/TestHelper/TestHelper.psm1
index 67ca0d5..42ecdd4 100644
--- a/tests/TestHelper/TestHelper.psm1
+++ b/tests/TestHelper/TestHelper.psm1
@@ -148,7 +148,7 @@ function Get-AzureEntraIdToken
         The name of the resource group where the Azure Cosmos DB account will be created.
 
     .PARAMETER Location
-        The Azure region where the Azure Cosmos DB account will be created. Defaults to 'East US'.
+        The Azure region where the Azure Cosmos DB account will be created. Defaults to 'West US 3'.
 
     .EXAMPLE
         New-AzureTestCosmosDbAccount -ObjectId '12345678-1234-1234-1234-123456789012' -AccountName 'testCosmosDb' -ResourceGroupName 'testResourceGroup'
@@ -180,7 +180,7 @@ function New-AzureTestCosmosDbAccount
 
         [Parameter()]
         [System.String]
-        $Location = 'East US'
+        $Location = 'West US 3'
     )
 
     try
@@ -272,7 +272,7 @@ function New-AzureTestCosmosDbResourceGroup
 
         [Parameter()]
         [System.String]
-        $Location = 'East US'
+        $Location = 'West US 3'
     )
 
     try
diff --git a/tests/Unit/CosmosDB.accounts.Tests.ps1 b/tests/Unit/CosmosDB.accounts.Tests.ps1
index 34e6c6d..b438b99 100644
--- a/tests/Unit/CosmosDB.accounts.Tests.ps1
+++ b/tests/Unit/CosmosDB.accounts.Tests.ps1
@@ -19,7 +19,7 @@ InModuleScope $ProjectName {
     $script:testResourceGroupName = 'testResourceGroupName'
     $script:testLocation = 'North Central US'
     $script:testLocationRead1 = 'South Central US'
-    $script:testLocationRead2 = 'East US'
+    $script:testLocationRead2 = 'West US 3'
     $script:testIpRangeFilter = @('10.0.0.1/8', '10.0.0.2/8')
     $script:testConsistencyLevel = 'Strong'
     $script:testMaxIntervalInSeconds = 60