diff --git a/Jellyfin.Plugin.SmartPlaylist/SmartPlaylistFileSystem.cs b/Jellyfin.Plugin.SmartPlaylist/SmartPlaylistFileSystem.cs
index f538709..77cf9b4 100644
--- a/Jellyfin.Plugin.SmartPlaylist/SmartPlaylistFileSystem.cs
+++ b/Jellyfin.Plugin.SmartPlaylist/SmartPlaylistFileSystem.cs
@@ -16,13 +16,21 @@ namespace Jellyfin.Plugin.SmartPlaylist {
         }
         public string StoragePath { get; }
         public string GetSmartPlaylistFilePath(SmartPlaylistId smartPlaylistId) {
-            return Path.Combine(StoragePath, $"{smartPlaylistId}.json");
+            return Path.Combine(StoragePath, $"{smartPlaylistId}.yaml");
         }
         public string FindSmartPlaylistFilePath(SmartPlaylistId smartPlaylistId) {
-            return Directory.GetFiles(StoragePath, $"{smartPlaylistId}.json", SearchOption.AllDirectories).First();
+            return Directory.GetFiles(StoragePath, $"{smartPlaylistId}.yaml", SearchOption.AllDirectories).Concat(
+                Directory.GetFiles(StoragePath, $"{smartPlaylistId}.yml", SearchOption.AllDirectories)
+            ).Concat(
+                Directory.GetFiles(StoragePath, $"{smartPlaylistId}.json", SearchOption.AllDirectories)
+            ).First();
         }
         public string[] FindAllSmartPlaylistFilePaths() {
-            return Directory.GetFiles(StoragePath, "*.json", SearchOption.AllDirectories);
+            return Directory.GetFiles(StoragePath, "*.yaml", SearchOption.AllDirectories).Concat(
+                Directory.GetFiles(StoragePath, "*.yml", SearchOption.AllDirectories)
+            ).Concat(
+                Directory.GetFiles(StoragePath, "*.json", SearchOption.AllDirectories)
+            ).ToArray();
         }
     }
 }
diff --git a/Jellyfin.Plugin.SmartPlaylist/Store.cs b/Jellyfin.Plugin.SmartPlaylist/Store.cs
index ede98dc..c181e59 100644
--- a/Jellyfin.Plugin.SmartPlaylist/Store.cs
+++ b/Jellyfin.Plugin.SmartPlaylist/Store.cs
@@ -1,4 +1,4 @@
-using System.Text.Json;
+using YamlDotNet.Serialization;
 
 namespace Jellyfin.Plugin.SmartPlaylist {
     public interface IStore {
@@ -14,9 +14,10 @@ namespace Jellyfin.Plugin.SmartPlaylist {
             _fileSystem = fileSystem;
         }
         private async Task<SmartPlaylistDto> LoadPlaylistAsync(string filename) {
-            await using var r = File.OpenRead(filename);
-            var dto = (await JsonSerializer.DeserializeAsync<SmartPlaylistDto>(r).ConfigureAwait(false));
-            if (dto == null) {
+            var r = File.ReadAllText(filename);
+            var dto = new DeserializerBuilder().Build().Deserialize<SmartPlaylistDto>(r);
+            if (dto == null)
+            {
                 throw new ApplicationException("");
             }
             if (dto.Id == Path.GetFileNameWithoutExtension(filename)) {
@@ -38,8 +39,8 @@ namespace Jellyfin.Plugin.SmartPlaylist {
         }
         public async Task SaveSmartPlaylistAsync(SmartPlaylistDto smartPlaylist) {
             string filename = _fileSystem.GetSmartPlaylistFilePath(smartPlaylist.Id);
-            await using var w = File.Create(filename);
-            await JsonSerializer.SerializeAsync(w, smartPlaylist).ConfigureAwait(false);
+            var text = new SerializerBuilder().Build().Serialize(smartPlaylist);
+            File.WriteAllText(filename, text);
         }
         private void DeleteSmartPlaylistById(SmartPlaylistId smartPlaylistId) {
             try {
diff --git a/Jellyfin.Plugin.SmartPlaylist/jellyfin-smart-playlist.csproj b/Jellyfin.Plugin.SmartPlaylist/jellyfin-smart-playlist.csproj
index f608c44..e1afeac 100644
--- a/Jellyfin.Plugin.SmartPlaylist/jellyfin-smart-playlist.csproj
+++ b/Jellyfin.Plugin.SmartPlaylist/jellyfin-smart-playlist.csproj
@@ -11,6 +11,7 @@
   <ItemGroup>
     <PackageReference Include="Jellyfin.Controller" Version="10.10.0" />
     <PackageReference Include="Jellyfin.Model" Version="10.10.0" />
+    <PackageReference Include="YamlDotNet" Version="16.1.3" />
   </ItemGroup>
 
 </Project>