diff --git a/AssetManager.Services/PortfolioService.cs b/AssetManager.Services/PortfolioService.cs
index 4e70232..cb93836 100644
--- a/AssetManager.Services/PortfolioService.cs
+++ b/AssetManager.Services/PortfolioService.cs
@@ -10,12 +10,18 @@ public class PortfolioService : IPortfolioService
     private readonly ISqlSugarClient _db;
     private readonly IMarketDataService _marketDataService;
     private readonly IExchangeRateService _exchangeRateService;
+    private readonly ILogger<PortfolioService> _logger;
 
-    public PortfolioService(ISqlSugarClient db, IMarketDataService marketDataService, IExchangeRateService exchangeRateService)
+    public PortfolioService(
+        ISqlSugarClient db, 
+        IMarketDataService marketDataService, 
+        IExchangeRateService exchangeRateService,
+        ILogger<PortfolioService> logger)
     {
         _db = db;
         _marketDataService = marketDataService;
         _exchangeRateService = exchangeRateService;
+        _logger = logger;
     }
 
     public CreatePortfolioResponse CreatePortfolio(CreatePortfolioRequest request, string userId)