diff --git a/dotnet/AipsWebApi/Program.cs b/dotnet/AipsWebApi/Program.cs
index d1db72b..9c75565 100644
--- a/dotnet/AipsWebApi/Program.cs
+++ b/dotnet/AipsWebApi/Program.cs
@@ -24,6 +24,7 @@ if (app.Environment.IsDevelopment())
 
 app.UseMiddleware<ExceptionHandlingMiddleware>();
 
+app.UseAuthentication();
 app.UseAuthorization();
 
 app.MapControllers();