diff --git a/Program.cs b/Program.cs
index b38a3a9..d8abc96 100644
--- a/Program.cs
+++ b/Program.cs
@@ -8,7 +8,7 @@
 builder.Services.AddDbContext<AppDbContext>(options =>
     options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection")));
 builder.Services.AddScoped<SyncService>();
-builder.Services.AddScoped<ThumbnailService>();
+builder.Services.AddSingleton<ThumbnailService>();
 
 var app = builder.Build();