diff --git a/src/GitHub.Api/GitHub.Api.csproj b/src/GitHub.Api/GitHub.Api.csproj
index 30462a466..afaf9e19a 100644
--- a/src/GitHub.Api/GitHub.Api.csproj
+++ b/src/GitHub.Api/GitHub.Api.csproj
@@ -80,10 +80,6 @@
       <HintPath>$(SolutionDir).\packages\TaskParallelLibrary.1.0.3333.0\lib\Net35\System.Threading.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Application\ApplicationInfo.cs" />
diff --git a/src/GitHub.Api/Primitives/StringEquivalent.cs b/src/GitHub.Api/Primitives/StringEquivalent.cs
index 5dd82b3c7..5e360e2c5 100644
--- a/src/GitHub.Api/Primitives/StringEquivalent.cs
+++ b/src/GitHub.Api/Primitives/StringEquivalent.cs
@@ -1,14 +1,11 @@
 using System;
 using System.Diagnostics.CodeAnalysis;
 using System.Runtime.Serialization;
-using System.Xml;
-using System.Xml.Schema;
-using System.Xml.Serialization;
 
 namespace GitHub.Unity
 {
     [Serializable]
-    public abstract class StringEquivalent<T> : ISerializable, IXmlSerializable where T : StringEquivalent<T>
+    public abstract class StringEquivalent<T> : ISerializable where T : StringEquivalent<T>
     {
         protected string Value;
 
@@ -86,21 +83,6 @@ public virtual void GetObjectData(SerializationInfo info, StreamingContext conte
             info.AddValue("Value", Value);
         }
 
-        public XmlSchema GetSchema()
-        {
-            return null;
-        }
-
-        public void ReadXml(XmlReader reader)
-        {
-            Value = reader.ReadString();
-        }
-
-        public void WriteXml(XmlWriter writer)
-        {
-            writer.WriteString(Value);
-        }
-
         public int Length
         {
             get { return Value != null ? Value.Length : 0; }
diff --git a/src/GitHub.Logging/GitHub.Logging.csproj b/src/GitHub.Logging/GitHub.Logging.csproj
index dbe4582e5..ef69bfeac 100644
--- a/src/GitHub.Logging/GitHub.Logging.csproj
+++ b/src/GitHub.Logging/GitHub.Logging.csproj
@@ -53,10 +53,6 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Extensions\ExceptionExtensions.cs" />
diff --git a/src/UnityExtension/Assets/Editor/GitHub.Unity/GitHub.Unity.csproj b/src/UnityExtension/Assets/Editor/GitHub.Unity/GitHub.Unity.csproj
index 1fa8438aa..33b95c8ba 100644
--- a/src/UnityExtension/Assets/Editor/GitHub.Unity/GitHub.Unity.csproj
+++ b/src/UnityExtension/Assets/Editor/GitHub.Unity/GitHub.Unity.csproj
@@ -58,10 +58,6 @@
       <HintPath>$(SolutionDir)\packages\TaskParallelLibrary.1.0.3333.0\lib\Net35\System.Threading.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Xml" />
     <Reference Include="UnityEditor">
       <HintPath>$(UnityDir)Managed\UnityEditor.dll</HintPath>
       <Private>False</Private>
diff --git a/src/UnityExtension/Assets/Editor/UnityTests/UnityTests.csproj b/src/UnityExtension/Assets/Editor/UnityTests/UnityTests.csproj
index 7476be989..63cceb65d 100644
--- a/src/UnityExtension/Assets/Editor/UnityTests/UnityTests.csproj
+++ b/src/UnityExtension/Assets/Editor/UnityTests/UnityTests.csproj
@@ -40,10 +40,6 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
-    <Reference Include="System.Xml" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Runtime.Serialization" />
-    <Reference Include="System.Xml.Linq" />
     <Reference Include="UnityEditor">
       <HintPath>$(UnityDir)Managed\UnityEditor.dll</HintPath>
     </Reference>