diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index 0081dc7..5f19168 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -62,8 +62,10 @@ jobs:
     - run: az cosmosdb create --kind GlobalDocumentDB --locations regionName=$Location failoverPriority=0 isZoneRedundant=False --resource-group $ResourceGroup --name $CosmosAccount --capabilities EnableServerless --backup-policy-type Continuous
     - run: az cosmosdb sql database create --account-name $CosmosAccount --name $CosmosDatabase --resource-group $ResourceGroup
     - run: az cosmosdb sql container create --account-name $CosmosAccount --database-name $CosmosDatabase --name $CosmosCollection --partition-key-path "/id" --resource-group $ResourceGroup
-    #- run: az cosmosdb sql role assignment create --account-name $CosmosAccount --resource-group $ResourceGroup --scope "/" --role-definition-name "Contributor" --principal-id $(az functionapp identity show --name $FunctionApp --resource-group $ResourceGroup --query principalId)
-    - run: az functionapp config appsettings set --name $FunctionApp --resource-group $ResourceGroup --settings "CosmosDBConnectionString=$(az cosmosdb keys list --type connection-strings --name $CosmosAccount --resource-group $ResourceGroup --query connectionStrings[0].connectionString --output tsv)" --query "[name]"
+    - run: az functionapp config appsettings set --name $FunctionApp --resource-group $ResourceGroup --settings "CosmosDBConnection__accountEndpoint=https://$CosmosAccount.documents.azure.com:443" --query "[name]"
+    - run: az cosmosdb sql role assignment create --account-name $CosmosAccount --resource-group $ResourceGroup --scope "/" --role-definition-name "Cosmos DB Built-in Data Contributor" --principal-id $(az functionapp identity show --name $FunctionApp --resource-group $ResourceGroup --query principalId --output tsv)
+    - run: az cosmosdb update --name $CosmosAccount --resource-group $ResourceGroup --disable-key-based-metadata-write-access true
+    #- run: az functionapp config appsettings set --name $FunctionApp --resource-group $ResourceGroup --settings "CosmosDBConnectionString=$(az cosmosdb keys list --type connection-strings --name $CosmosAccount --resource-group $ResourceGroup --query connectionStrings[0].connectionString --output tsv)" --query "[name]"
     - uses: actions/download-artifact@v3
     - uses: Azure/functions-action@v1
       with:
@@ -120,8 +122,10 @@ jobs:
     - run: az cosmosdb create --kind GlobalDocumentDB --locations regionName=$Location failoverPriority=0 isZoneRedundant=False --resource-group $ResourceGroup --name $CosmosAccount --capabilities EnableServerless --backup-policy-type Continuous
     - run: az cosmosdb sql database create --account-name $CosmosAccount --name $CosmosDatabase --resource-group $ResourceGroup
     - run: az cosmosdb sql container create --account-name $CosmosAccount --database-name $CosmosDatabase --name $CosmosCollection --partition-key-path "/id" --resource-group $ResourceGroup
-    #- run: az cosmosdb sql role assignment create --account-name $CosmosAccount --resource-group $ResourceGroup --scope "/" --role-definition-name "Contributor" --principal-id $(az functionapp identity show --name $FunctionApp --resource-group $ResourceGroup --query principalId)
-    - run: az functionapp config appsettings set --name $FunctionApp --resource-group $ResourceGroup --settings "CosmosDBConnectionString=$(az cosmosdb keys list --type connection-strings --name $CosmosAccount --resource-group $ResourceGroup --query connectionStrings[0].connectionString --output tsv)" --query "[name]"
+    - run: az functionapp config appsettings set --name $FunctionApp --resource-group $ResourceGroup --settings "CosmosDBConnection__accountEndpoint=https://$CosmosAccount.documents.azure.com:443" --query "[name]"
+    - run: az cosmosdb sql role assignment create --account-name $CosmosAccount --resource-group $ResourceGroup --scope "/" --role-definition-name "Cosmos DB Built-in Data Contributor" --principal-id $(az functionapp identity show --name $FunctionApp --resource-group $ResourceGroup --query principalId --output tsv)
+    - run: az cosmosdb update --name $CosmosAccount --resource-group $ResourceGroup --disable-key-based-metadata-write-access true
+    #- run: az functionapp config appsettings set --name $FunctionApp --resource-group $ResourceGroup --settings "CosmosDBConnectionString=$(az cosmosdb keys list --type connection-strings --name $CosmosAccount --resource-group $ResourceGroup --query connectionStrings[0].connectionString --output tsv)" --query "[name]"
     - uses: actions/download-artifact@v3
     - uses: Azure/functions-action@v1
       with:
diff --git a/HttpExample/function.json b/HttpExample/function.json
index acae8b7..607717b 100644
--- a/HttpExample/function.json
+++ b/HttpExample/function.json
@@ -18,7 +18,7 @@
       "direction": "out",
       "databaseName": "mydatabase",
 			"collectionName": "mycollection",
-      "connectionStringSetting": "CosmosDBConnectionString"      
+      "connection": "CosmosDBConnection"      
     }
 ]
-}
\ No newline at end of file
+}
diff --git a/host.json b/host.json
index 9343914..ddfa0d4 100644
--- a/host.json
+++ b/host.json
@@ -1,8 +1,8 @@
 {
 	"version": "2.0",
 	"extensionBundle": {
-		"id": "Microsoft.Azure.Functions.ExtensionBundle",
-		"version": "[2.*, 3.0.0)"
+		"id": "Microsoft.Azure.Functions.ExtensionBundle.Preview",
+		"version": "[4.0.0, 5.0.0)"
 	},
 	"customHandler": {	    
 		"description": {
@@ -12,11 +12,7 @@
 	},
 	"extensions": {
 		"cosmosDB": {
-				"connectionMode": "Gateway",
-				"protocol": "Https",
-				"leaseOptions": {
-						"leasePrefix": "prefix1"
-				}
+				"connectionMode": "Gateway"
 		}
   }
-}
\ No newline at end of file
+}