diff --git a/src/Api/Dfe.Complete.Api.Client/Dfe.Complete.Api.Client.csproj b/src/Api/Dfe.Complete.Api.Client/Dfe.Complete.Api.Client.csproj
index e329751..0aeb0db 100644
--- a/src/Api/Dfe.Complete.Api.Client/Dfe.Complete.Api.Client.csproj
+++ b/src/Api/Dfe.Complete.Api.Client/Dfe.Complete.Api.Client.csproj
@@ -27,7 +27,7 @@
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.2" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.1" />
-    <PackageReference Include="Microsoft.Identity.Client" Version="4.65.0" />
+    <PackageReference Include="Microsoft.Identity.Client" Version="4.66.2" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
   </ItemGroup>