diff --git a/Server/Program.cs b/Server/Program.cs
index 6293348..8dfd977 100644
--- a/Server/Program.cs
+++ b/Server/Program.cs
@@ -29,7 +29,7 @@ builder.Services.AddSingleton<PdfExportService>();
 builder.Services.AddSingleton<ITransportApiService, TransportApiService>();
 builder.Services.AddSingleton<ITransportService, TransportService>();
 builder.Services.AddHttpContextAccessor();
-builder.Services.AddScoped<IGoogleCalendarService, GoogleCalendarService>();
+builder.Services.AddScoped<IOldGoogleCalendarService, GoogleCalendarService>();
 
 // Configure authentication
 builder.Services.AddAuthentication(options =>
diff --git a/Services/GoogleCalendarService.cs b/Services/GoogleCalendarService.cs
index 4fc9312..1a5d90d 100644
--- a/Services/GoogleCalendarService.cs
+++ b/Services/GoogleCalendarService.cs
@@ -8,14 +8,14 @@ using ShiftScheduler.Shared;
 
 namespace ShiftScheduler.Services;
 
-public interface IGoogleCalendarService
+public interface IOldGoogleCalendarService
 {
     Task<List<CalendarListEntry>> GetCalendarsAsync();
     Task SyncShiftsToCalendarAsync(string calendarId, List<ShiftWithTransport> shifts);
 }
 
 public class GoogleCalendarService(IHttpContextAccessor httpContextAccessor, IConfigurationService configurationService)
-    : IGoogleCalendarService
+    : IOldGoogleCalendarService
 {
     public async Task<List<CalendarListEntry>> GetCalendarsAsync()
     {