diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/PasswordVaultHelper.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/PasswordVaultHelper.cs
index 4de6068..3b9ca16 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/PasswordVaultHelper.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/PasswordVaultHelper.cs
@@ -20,10 +20,17 @@ namespace BetterLyrics.WinUI3.Helper
             var vault = new PasswordVault();
 
             // 删除旧值（避免重复存储）
-            var oldCredential = vault.FindAllByResource(resource).Where(x => x.UserName == key).FirstOrDefault();
-            if (oldCredential != null)
+            try
             {
-                vault.Remove(oldCredential);
+                var oldCredential = vault.Retrieve(resource, key);
+                if (oldCredential != null)
+                {
+                    vault.Remove(oldCredential);
+                }
+            }
+            catch
+            {
+                // 没有旧值就忽略
             }
 
             vault.Add(new PasswordCredential(resource, key, value));
@@ -38,13 +45,13 @@ namespace BetterLyrics.WinUI3.Helper
         public static string? Get(string resource, string key)
         {
             var vault = new PasswordVault();
-            var credential = vault.FindAllByResource(resource).Where(x => x.UserName == key).FirstOrDefault();
-            if (credential != null)
+            try
             {
+                var credential = vault.Retrieve(resource, key);
                 credential.RetrievePassword();
                 return credential.Password;
             }
-            else
+            catch
             {
                 return null;
             }
@@ -56,11 +63,15 @@ namespace BetterLyrics.WinUI3.Helper
         public static void Delete(string resource, string key)
         {
             var vault = new PasswordVault();
-            var credential = vault.FindAllByResource(resource).Where(x => x.UserName == key).FirstOrDefault();
-            if (credential != null)
+            try
             {
+                var credential = vault.Retrieve(resource, key);
                 vault.Remove(credential);
             }
+            catch
+            {
+                // 不存在就忽略
+            }
         }
     }
-}
+}
\ No newline at end of file