diff --git a/back/src/Kyoo.Abstractions/Models/Patch.cs b/back/src/Kyoo.Abstractions/Models/Patch.cs
index 305a76fb..1eafe949 100644
--- a/back/src/Kyoo.Abstractions/Models/Patch.cs
+++ b/back/src/Kyoo.Abstractions/Models/Patch.cs
@@ -19,27 +19,27 @@
 using System;
 using System.Collections.Generic;
 using System.Reflection;
+using System.Text.Json;
 using Kyoo.Abstractions.Models;
-using Newtonsoft.Json.Linq;
 
 namespace Kyoo.Models;
 
-public class Patch<T> : Dictionary<string, JToken>
+public class Patch<T> : Dictionary<string, JsonDocument>
 	where T : class, IResource
 {
-	public Guid? Id => this.GetValueOrDefault(nameof(IResource.Id))?.ToObject<Guid>();
+	public Guid? Id => this.GetValueOrDefault(nameof(IResource.Id))?.Deserialize<Guid>();
 
-	public string? Slug => this.GetValueOrDefault(nameof(IResource.Slug))?.ToObject<string>();
+	public string? Slug => this.GetValueOrDefault(nameof(IResource.Slug))?.Deserialize<string>();
 
 	public T Apply(T current)
 	{
-		foreach ((string property, JToken value) in this)
+		foreach ((string property, JsonDocument value) in this)
 		{
 			PropertyInfo prop = typeof(T).GetProperty(
 				property,
 				BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance
 			)!;
-			prop.SetValue(current, value.ToObject(prop.PropertyType));
+			prop.SetValue(current, value.Deserialize(prop.PropertyType));
 		}
 		return current;
 	}
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/Interfaces/IThumbnails.cs b/back/src/Kyoo.Abstractions/Models/Resources/Interfaces/IThumbnails.cs
index b590c98d..aed090b1 100644
--- a/back/src/Kyoo.Abstractions/Models/Resources/Interfaces/IThumbnails.cs
+++ b/back/src/Kyoo.Abstractions/Models/Resources/Interfaces/IThumbnails.cs
@@ -20,8 +20,8 @@ using System;
 using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.Globalization;
+using System.Text.Json.Serialization;
 using Kyoo.Abstractions.Models.Attributes;
-using Newtonsoft.Json;
 
 namespace Kyoo.Abstractions.Models
 {
diff --git a/back/src/Kyoo.Abstractions/Models/Resources/JwtToken.cs b/back/src/Kyoo.Abstractions/Models/Resources/JwtToken.cs
index d2c8eacd..1342dc07 100644
--- a/back/src/Kyoo.Abstractions/Models/Resources/JwtToken.cs
+++ b/back/src/Kyoo.Abstractions/Models/Resources/JwtToken.cs
@@ -18,7 +18,6 @@
 
 using System;
 using System.Text.Json.Serialization;
-using Newtonsoft.Json;
 
 namespace Kyoo.Abstractions.Models;
 
@@ -36,21 +35,18 @@ public class JwtToken(string accessToken, string refreshToken, TimeSpan expireIn
 	/// <summary>
 	/// The type of this token (always a Bearer).
 	/// </summary>
-	[JsonProperty("token_type")]
 	[JsonPropertyName("token_type")]
 	public string TokenType => "Bearer";
 
 	/// <summary>
 	/// The access token used to authorize requests.
 	/// </summary>
-	[JsonProperty("access_token")]
 	[JsonPropertyName("access_token")]
 	public string AccessToken { get; set; } = accessToken;
 
 	/// <summary>
 	/// The refresh token used to retrieve a new access/refresh token when the access token has expired.
 	/// </summary>
-	[JsonProperty("refresh_token")]
 	[JsonPropertyName("refresh_token")]
 	public string RefreshToken { get; set; } = refreshToken;
 
@@ -58,14 +54,12 @@ public class JwtToken(string accessToken, string refreshToken, TimeSpan expireIn
 	/// When the access token will expire. After this time, the refresh token should be used to retrieve.
 	/// a new token.cs
 	/// </summary>
-	[JsonProperty("expire_in")]
 	[JsonPropertyName("expire_in")]
 	public TimeSpan ExpireIn => ExpireAt.Subtract(DateTime.UtcNow);
 
 	/// <summary>
 	/// The exact date at which the access token will expire.
 	/// </summary>
-	[JsonProperty("expire_at")]
 	[JsonPropertyName("expire_at")]
 	public DateTime ExpireAt { get; set; } = DateTime.UtcNow + expireIn;
 }
diff --git a/back/src/Kyoo.Authentication/Kyoo.Authentication.csproj b/back/src/Kyoo.Authentication/Kyoo.Authentication.csproj
index b273ee03..83a794b7 100644
--- a/back/src/Kyoo.Authentication/Kyoo.Authentication.csproj
+++ b/back/src/Kyoo.Authentication/Kyoo.Authentication.csproj
@@ -7,7 +7,6 @@
 	<ItemGroup>
 		<PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="7.0.12" />
 		<PackageReference Include="BCrypt.Net-Next" Version="4.0.3" />
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
 
 		<ProjectReference Include="../Kyoo.Abstractions/Kyoo.Abstractions.csproj" />
 	</ItemGroup>
diff --git a/back/src/Kyoo.Core/Kyoo.Core.csproj b/back/src/Kyoo.Core/Kyoo.Core.csproj
index 783954ce..91fabccd 100644
--- a/back/src/Kyoo.Core/Kyoo.Core.csproj
+++ b/back/src/Kyoo.Core/Kyoo.Core.csproj
@@ -12,8 +12,6 @@
 		<PackageReference Include="InterpolatedSql.Dapper" Version="2.1.0" />
 		<PackageReference Include="FlexLabs.EntityFrameworkCore.Upsert" Version="7.0.0" />
 		<PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.9" />
-		<PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="7.0.12" />
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
 		<PackageReference Include="SkiaSharp" Version="2.88.6" />
 		<PackageReference Include="SkiaSharp.NativeAssets.Linux.NoDependencies" Version="2.88.6" />
 	</ItemGroup>
diff --git a/back/src/Kyoo.Postgresql/Utils/JsonTypeHandler.cs b/back/src/Kyoo.Postgresql/Utils/JsonTypeHandler.cs
index 1eff28a2..e9655389 100644
--- a/back/src/Kyoo.Postgresql/Utils/JsonTypeHandler.cs
+++ b/back/src/Kyoo.Postgresql/Utils/JsonTypeHandler.cs
@@ -17,7 +17,7 @@
 // along with Kyoo. If not, see <https://www.gnu.org/licenses/>.
 
 using System.Data;
-using Newtonsoft.Json;
+using System.Text.Json;
 using Npgsql;
 using NpgsqlTypes;
 using static Dapper.SqlMapper;
@@ -30,13 +30,13 @@ public class JsonTypeHandler<T> : TypeHandler<T>
 	public override T? Parse(object value)
 	{
 		if (value is string str)
-			return JsonConvert.DeserializeObject<T>(str);
+			return JsonSerializer.Deserialize<T>(str);
 		return default;
 	}
 
 	public override void SetValue(IDbDataParameter parameter, T? value)
 	{
-		parameter.Value = JsonConvert.SerializeObject(value);
+		parameter.Value = JsonSerializer.Serialize(value);
 		((NpgsqlParameter)parameter).NpgsqlDbType = NpgsqlDbType.Jsonb;
 	}
 }