diff --git a/TeleSharp.TL/TLUtils.cs b/TeleSharp.TL/TLUtils.cs
index 0f7b04c..7853e04 100644
--- a/TeleSharp.TL/TLUtils.cs
+++ b/TeleSharp.TL/TLUtils.cs
@@ -1,7 +1,5 @@
 using System.IO;
 using System.Text;
-using BigMath;
-using BigMath.Utils;
 
 namespace TeleSharp.TL
 {
@@ -160,30 +158,4 @@ namespace TeleSharp.TL
             writer.Write(src);
         }
     }
-
-    public class Int128Util
-    {
-        public static Int128 Deserialize(BinaryReader reader)
-        {
-            return reader.ReadBytes(16).ToInt128(0, true);
-        }
-
-        public static void Serialize(Int128 src, BinaryWriter writer)
-        {
-            writer.Write(src.ToBytes(true));
-        }
-    }
-
-    public class Int256Util
-    {
-        public static Int256 Deserialize(BinaryReader reader)
-        {
-            return reader.ReadBytes(32).ToInt256(0, true);
-        }
-
-        public static void Serialize(Int256 src, BinaryWriter writer)
-        {
-            writer.Write(src.ToBytes(true));
-        }
-    }
 }
\ No newline at end of file
diff --git a/TeleSharp.TL/TeleSharp.TL.csproj b/TeleSharp.TL/TeleSharp.TL.csproj
index 65252c2..023492d 100644
--- a/TeleSharp.TL/TeleSharp.TL.csproj
+++ b/TeleSharp.TL/TeleSharp.TL.csproj
@@ -30,10 +30,6 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="BigMath, Version=0.5.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\BigMath.0.5.0\lib\portable-net45+netcore45+wpa81+wp8+MonoAndroid1+MonoTouch1\BigMath.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
@@ -782,9 +778,6 @@
     <Compile Include="TL\Users\TLRequestGetFullUser.cs" />
     <Compile Include="TL\Users\TLRequestGetUsers.cs" />
   </ItemGroup>
-  <ItemGroup>
-    <None Include="packages.config" />
-  </ItemGroup>
   <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/TeleSharp.TL/packages.config b/TeleSharp.TL/packages.config
deleted file mode 100644
index 3fa590b..0000000
--- a/TeleSharp.TL/packages.config
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<packages>
-  <package id="BigMath" version="0.5.0" targetFramework="net452" />
-</packages>
\ No newline at end of file