diff --git a/Octokit/Clients/ITeamsClient.cs b/Octokit/Clients/ITeamsClient.cs
index 4249acaf..e4699ce9 100644
--- a/Octokit/Clients/ITeamsClient.cs
+++ b/Octokit/Clients/ITeamsClient.cs
@@ -159,6 +159,14 @@ namespace Octokit
         /// <returns></returns>
         Task<bool> AddRepository(int id, string organization, string repoName);
 
+        /// <summary>
+        /// Add a repository to the team
+        /// </summary>
+        /// <param name="permission">The permission to grant the team on this repository</param>
+        /// <exception cref="ApiException">Thrown when a general API error occurs.</exception>
+        /// <returns></returns>
+        Task<bool> AddRepository(int id, string organization, string repoName, PermissionType permission);
+
         /// <summary>
         /// Remove a repository from the team
         /// </summary>
diff --git a/Octokit/Clients/TeamsClient.cs b/Octokit/Clients/TeamsClient.cs
index 3ec477ac..cc267bc3 100644
--- a/Octokit/Clients/TeamsClient.cs
+++ b/Octokit/Clients/TeamsClient.cs
@@ -317,6 +317,24 @@ namespace Octokit
             }
         }
 
+        public async Task<bool> AddRepository(int id, string organization, string repoName, PermissionType permission)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(organization, "organization");
+            Ensure.ArgumentNotNullOrEmptyString(repoName, "repoName");
+
+            var endpoint = ApiUrls.TeamRepository(id, organization, repoName);
+
+            try
+            {
+                var httpStatusCode = await ApiConnection.Connection.Put(endpoint).ConfigureAwait(false);
+                return httpStatusCode == HttpStatusCode.NoContent;
+            }
+            catch (NotFoundException)
+            {
+                return false;
+            }
+        }
+
         /// <summary>
         /// Remove a repository from the team
         /// </summary>
diff --git a/Octokit/Models/Request/TeamRepositoryUpdate.cs b/Octokit/Models/Request/TeamRepositoryUpdate.cs
new file mode 100644
index 00000000..1106572f
--- /dev/null
+++ b/Octokit/Models/Request/TeamRepositoryUpdate.cs
@@ -0,0 +1,42 @@
+using Octokit.Internal;
+using System.Diagnostics;
+using System.Globalization;
+
+namespace Octokit
+{
+    public enum PermissionType
+    {
+        [Parameter(Value = "pull")]
+        Pull,
+        [Parameter(Value = "push")]
+        Push,
+        [Parameter(Value = "admin")]
+        Admin
+    }
+
+    [DebuggerDisplay("{DebuggerDisplay,nq}")]
+    public class TeamRepositoryUpdate
+    {
+        /// <summary>
+        /// Used to add or update a team repository.
+        /// </summary>
+        public TeamRepositoryUpdate(PermissionType permission)
+        {
+            Permission = permission;
+        }
+
+        /// <summary>
+        /// The permission to grant the team on this repository.
+        /// </summary>
+        [Parameter(Key = "permission")]
+        public PermissionType Permission { get; private set; }
+
+        internal string DebuggerDisplay
+        {
+            get
+            {
+                return string.Format(CultureInfo.InvariantCulture, "Permission: {}", Permission);
+            }
+        }
+    }
+}
diff --git a/Octokit/Octokit-Mono.csproj b/Octokit/Octokit-Mono.csproj
index 2370eca2..a2638bab 100644
--- a/Octokit/Octokit-Mono.csproj
+++ b/Octokit/Octokit-Mono.csproj
@@ -466,6 +466,7 @@
     <Compile Include="Clients\MigrationsClient.cs" />
     <Compile Include="Models\Request\StartMigrationRequest.cs" />
     <Compile Include="Models\Response\Migration.cs" />
+    <Compile Include="Models\Request\TeamRepositoryUpdate.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/Octokit/Octokit-MonoAndroid.csproj b/Octokit/Octokit-MonoAndroid.csproj
index f7fadcd7..b4a0a293 100644
--- a/Octokit/Octokit-MonoAndroid.csproj
+++ b/Octokit/Octokit-MonoAndroid.csproj
@@ -477,6 +477,7 @@
     <Compile Include="Models\Response\Enterprise\Migration.cs" />
     <Compile Include="Models\Request\StartMigrationRequest.cs" />
     <Compile Include="Models\Response\Migration.cs" />
+    <Compile Include="Models\Request\TeamRepositoryUpdate.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Novell\Novell.MonoDroid.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/Octokit/Octokit-Monotouch.csproj b/Octokit/Octokit-Monotouch.csproj
index d99d3979..50fdde6d 100644
--- a/Octokit/Octokit-Monotouch.csproj
+++ b/Octokit/Octokit-Monotouch.csproj
@@ -473,6 +473,7 @@
     <Compile Include="Models\Response\Enterprise\Migration.cs" />
     <Compile Include="Models\Request\StartMigrationRequest.cs" />
     <Compile Include="Models\Response\Migration.cs" />
+    <Compile Include="Models\Request\TeamRepositoryUpdate.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.MonoTouch.CSharp.targets" />
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
diff --git a/Octokit/Octokit-Portable.csproj b/Octokit/Octokit-Portable.csproj
index 4c2c1574..44aa78eb 100644
--- a/Octokit/Octokit-Portable.csproj
+++ b/Octokit/Octokit-Portable.csproj
@@ -463,6 +463,7 @@
     <Compile Include="Clients\MigrationsClient.cs" />
     <Compile Include="Models\Request\StartMigrationRequest.cs" />
     <Compile Include="Models\Response\Migration.cs" />
+    <Compile Include="Models\Request\TeamRepositoryUpdate.cs" />
   </ItemGroup>
   <ItemGroup>
     <CodeAnalysisDictionary Include="..\CustomDictionary.xml">
diff --git a/Octokit/Octokit-netcore45.csproj b/Octokit/Octokit-netcore45.csproj
index 841d4088..c459ed44 100644
--- a/Octokit/Octokit-netcore45.csproj
+++ b/Octokit/Octokit-netcore45.csproj
@@ -470,6 +470,7 @@
     <Compile Include="Clients\MigrationsClient.cs" />
     <Compile Include="Models\Request\StartMigrationRequest.cs" />
     <Compile Include="Models\Response\Migration.cs" />
+    <Compile Include="Models\Request\TeamRepositoryUpdate.cs" />
   </ItemGroup>
   <ItemGroup>
     <CodeAnalysisDictionary Include="..\CustomDictionary.xml">
diff --git a/Octokit/Octokit.csproj b/Octokit/Octokit.csproj
index 2f5bac29..afd1dc39 100644
--- a/Octokit/Octokit.csproj
+++ b/Octokit/Octokit.csproj
@@ -144,6 +144,7 @@
     <Compile Include="Models\Request\NotificationsRequest.cs" />
     <Compile Include="Models\Request\CommitRequest.cs" />
     <Compile Include="Models\Request\StartMigrationRequest.cs" />
+    <Compile Include="Models\Request\TeamRepositoryUpdate.cs" />
     <Compile Include="Models\Request\UserRename.cs" />
     <Compile Include="Models\Response\ActivityPayloads\ActivityPayload.cs" />
     <Compile Include="Models\Response\ActivityPayloads\CommitCommentPayload.cs" />