diff --git a/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs b/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs
index 18b5f23..cbc98ad 100644
--- a/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs
+++ b/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs
@@ -87,7 +87,8 @@ namespace Jellyfin.Plugin.TubeArchivistMetadata.Configuration
             set
             {
                 _tubeArchivistApiKey = value;
-                Plugin.Instance?.LogTAApiConnectionStatus();
+                Plugin.Instance?.LogTAApiConnectionStatus();            
+                Plugin.Instance?.UpdateAuthorizationHeader();
             }
         }
 
diff --git a/Jellyfin.Plugin.TubeArchivistMetadata/Plugin.cs b/Jellyfin.Plugin.TubeArchivistMetadata/Plugin.cs
index bf21ab0..83153ea 100644
--- a/Jellyfin.Plugin.TubeArchivistMetadata/Plugin.cs
+++ b/Jellyfin.Plugin.TubeArchivistMetadata/Plugin.cs
@@ -57,7 +57,9 @@ namespace Jellyfin.Plugin.TubeArchivistMetadata
             handler.AllowAutoRedirect = false;
             handler.CheckCertificateRevocationList = true;
             HttpClient = new HttpClient(handler);
-            HttpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Token", Instance?.Configuration.TubeArchivistApiKey);
+            
+            UpdateAuthorizationHeader();
+            
             SessionManager = sessionManager;
             sessionManager.PlaybackProgress += OnPlaybackProgress;
             LibraryManager = libraryManager;
@@ -128,6 +130,23 @@ namespace Jellyfin.Plugin.TubeArchivistMetadata
             }
         };
 
+        /// <summary>
+        /// Updates the HTTP client's Authorization header with the current API key.
+        /// </summary>
+        public void UpdateAuthorizationHeader()
+        {
+            if (!string.IsNullOrEmpty(Configuration.TubeArchivistApiKey))
+            {
+                HttpClient.DefaultRequestHeaders.Authorization = 
+                    new System.Net.Http.Headers.AuthenticationHeaderValue("Token", Configuration.TubeArchivistApiKey);
+                Logger.LogInformation("{Message}", "Updated Authorization header with API key");
+            }
+            else
+            {
+                Logger.LogWarning("{Message}", "No TubeArchivist API key configured");
+            }
+        }
+
         /// <summary>
         /// Logs the TubeArchivist API connection status.
         /// </summary>
@@ -207,4 +226,4 @@ namespace Jellyfin.Plugin.TubeArchivistMetadata
             }
         }
     }
-}
+}
\ No newline at end of file