diff --git a/src/CarbonAwareComputing.ForecastUpdater.Function/CarbonAwareComputing.ForecastUpdater.Function.csproj b/src/CarbonAwareComputing.ForecastUpdater.Function/CarbonAwareComputing.ForecastUpdater.Function.csproj
index f5fa4fe..c92a10e 100644
--- a/src/CarbonAwareComputing.ForecastUpdater.Function/CarbonAwareComputing.ForecastUpdater.Function.csproj
+++ b/src/CarbonAwareComputing.ForecastUpdater.Function/CarbonAwareComputing.ForecastUpdater.Function.csproj
@@ -12,9 +12,10 @@
     <PackageReference Include="Microsoft.Azure.Functions.Extensions" Version="1.1.0" />
     <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.ServiceBus" Version="4.3.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="6.0.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
     <PackageReference Include="Microsoft.Graph" Version="4.50.0" />
-    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="4.1.3" />
+    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="4.6.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\CarbonAwareComputing.ForecastUpdater\CarbonAwareComputing.ForecastUpdater.csproj" />
diff --git a/src/CarbonAwareComputing.ForecastUpdater.Function/ForecastUpdateFunction.cs b/src/CarbonAwareComputing.ForecastUpdater.Function/ForecastUpdateFunction.cs
index 12930ba..b816245 100644
--- a/src/CarbonAwareComputing.ForecastUpdater.Function/ForecastUpdateFunction.cs
+++ b/src/CarbonAwareComputing.ForecastUpdater.Function/ForecastUpdateFunction.cs
@@ -30,7 +30,9 @@ public class ForecastUpdateFunction
         public ForecastUpdateFunction(IHttpClientFactory httpClientFactory, IOptions<ApplicationSettings> applicationSettings)
         {
             m_ApplicationSettings = applicationSettings;
+            
             m_Http = httpClientFactory.CreateClient();
+            
         }
 
 
diff --git a/src/CarbonAwareComputing.ForecastUpdater.Function/Startup.cs b/src/CarbonAwareComputing.ForecastUpdater.Function/Startup.cs
index f5603bc..d56e37d 100644
--- a/src/CarbonAwareComputing.ForecastUpdater.Function/Startup.cs
+++ b/src/CarbonAwareComputing.ForecastUpdater.Function/Startup.cs
@@ -3,6 +3,8 @@
 using Microsoft.Extensions.DependencyInjection;
 using System.Reflection;
 using System;
+using System.Net.Http;
+using Microsoft.Extensions.Options;
 
 [assembly: FunctionsStartup(typeof(CarbonAwareComputing.ForecastUpdater.Function.Startup))]
 namespace CarbonAwareComputing.ForecastUpdater.Function;
@@ -13,7 +15,13 @@ public override void Configure(IFunctionsHostBuilder builder)
         // Note: Only register dependencies, do not depend or request those in Configure().
         // Dependencies are only usable during function execution, not before (like here).
 
-        builder.Services.AddHttpClient();
+        builder.Services.AddHttpClient(Options.DefaultName).ConfigurePrimaryHttpMessageHandler(() =>
+        {
+            return new HttpClientHandler
+            {
+                ServerCertificateCustomValidationCallback = (httpRequestMessage, cert, certChain, policyErrors) => true
+            };
+        });
         builder.Services.AddOptions<ApplicationSettings>()
             .Configure<IConfiguration>((settings, configuration) =>
             {