diff --git a/Directory.Build.props b/Directory.Build.props
index 821164f..9df9c2e 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -7,6 +7,7 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <CheckEolTargetFramework>false</CheckEolTargetFramework>
     <SuppressNETCoreSdkPreviewMessage>true</SuppressNETCoreSdkPreviewMessage>
+    <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
diff --git a/README.ja.md b/README.ja.md
index c46076b..4b07560 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -460,6 +460,9 @@ nuspecファイルを使ってパッケージを生成する場合は、デフ
 
 ## 履歴
 
+* 3.3.0:
+  * .NET 8.0 SDKに対応しました。
+  * GitReaderを1.7.0に上げました。
 * 3.2.60:
   * ビルド時に`ThisAssembly`シンボルが参照できない場合があるのを修正。
 * 3.2.50:
diff --git a/README.md b/README.md
index 2ce3433..f8983b7 100644
--- a/README.md
+++ b/README.md
@@ -439,6 +439,9 @@ When you are using a nuspec file to generate a NuGet package, there are addition
 
 ## History
 
+* 3.3.0:.
+  * Added support for .NET 8.0 SDK.
+  * Updated GitReader to 1.7.0.
 * 3.2.60:
   * Fixed the `ThisAssembly` symbol could not be referenced at build time.
 * 3.2.50:
diff --git a/RelaxVersioner.Core.Tests/RelaxVersioner.Core.Tests.csproj b/RelaxVersioner.Core.Tests/RelaxVersioner.Core.Tests.csproj
index 7de4da5..00c6fd3 100644
--- a/RelaxVersioner.Core.Tests/RelaxVersioner.Core.Tests.csproj
+++ b/RelaxVersioner.Core.Tests/RelaxVersioner.Core.Tests.csproj
@@ -7,9 +7,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.4.2" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Verify.NUnit" Version="19.13.0" />
   </ItemGroup>
 
diff --git a/RelaxVersioner.Core/RelaxVersioner.Core.csproj b/RelaxVersioner.Core/RelaxVersioner.Core.csproj
index 0076318..4b58e31 100644
--- a/RelaxVersioner.Core/RelaxVersioner.Core.csproj
+++ b/RelaxVersioner.Core/RelaxVersioner.Core.csproj
@@ -12,11 +12,11 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitReader" Version="1.5.0" />
+    <PackageReference Include="GitReader" Version="1.7.0" />
     <PackageReference Include="NamingFormatter" Version="2.3.0" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
     <PackageReference Condition="'$(RV_BOOTSTRAP)' != 'True'"
-                      Include="RelaxVersioner" Version="3.2.40" PrivateAssets="all" />
+                      Include="RelaxVersioner" Version="3.2.60" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/RelaxVersioner.Tasks/RelaxVersioner.Tasks.csproj b/RelaxVersioner.Tasks/RelaxVersioner.Tasks.csproj
index 491d2e8..aa5e74e 100644
--- a/RelaxVersioner.Tasks/RelaxVersioner.Tasks.csproj
+++ b/RelaxVersioner.Tasks/RelaxVersioner.Tasks.csproj
@@ -29,7 +29,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
     <PackageReference Condition="'$(RV_BOOTSTRAP)' != 'True'"
-                      Include="RelaxVersioner" Version="3.2.40" PrivateAssets="all" />
+                      Include="RelaxVersioner" Version="3.2.60" PrivateAssets="all" />
   </ItemGroup>
 
 </Project>
diff --git a/RelaxVersioner/RelaxVersioner.csproj b/RelaxVersioner/RelaxVersioner.csproj
index beb7681..3bcc360 100644
--- a/RelaxVersioner/RelaxVersioner.csproj
+++ b/RelaxVersioner/RelaxVersioner.csproj
@@ -37,7 +37,7 @@
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3" PrivateAssets="All" />
     <PackageReference Include="Mono.Options" Version="6.12.0.148" />
     <PackageReference Condition="'$(RV_BOOTSTRAP)' != 'True'"
-                      Include="RelaxVersioner" Version="3.2.40" PrivateAssets="all" />
+                      Include="RelaxVersioner" Version="3.2.60" PrivateAssets="all" />
   </ItemGroup>
 
   <ItemGroup>