diff --git a/src/CountryData/CountryData.csproj b/src/CountryData/CountryData.csproj
index ee7f694..64307ec 100644
--- a/src/CountryData/CountryData.csproj
+++ b/src/CountryData/CountryData.csproj
@@ -7,7 +7,6 @@
     <EmbeddedResource Include="..\..\Data\countryInfo.json.txt" Link="countryInfo.json.txt" />
     <EmbeddedResource Condition="Exists('..\..\Data\postcodes.zip')" Include="..\..\Data\postcodes.zip" Link="postcodes.zip" />
     <PackageReference Include="System.IO.Compression.ZipFile" />
-    <PackageReference Include="System.Text.Json" />
     <PackageReference Include="ProjectDefaults" PrivateAssets="all" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 5ea2b1b..0a794dc 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -2,7 +2,7 @@
 <Project>
   <PropertyGroup>
     <NoWarn>CS1591</NoWarn>
-    <Version>6.7.0</Version>
+    <Version>6.8.0</Version>
     <LangVersion>preview</LangVersion>
     <AssemblyVersion>1.0.0</AssemblyVersion>
     <PackageTags>CountryLocationData, Bogus</PackageTags>
diff --git a/src/Directory.Packages.props b/src/Directory.Packages.props
index 90f5366..4ac4782 100644
--- a/src/Directory.Packages.props
+++ b/src/Directory.Packages.props
@@ -12,7 +12,6 @@
     <PackageVersion Include="System.IO.Compression" Version="4.3.0" />
     <PackageVersion Include="System.IO.Compression.ZipFile" Version="4.3.0" />
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />
-    <PackageVersion Include="System.Text.Json" Version="9.0.0" />
     <PackageVersion Include="Verify.XunitV3" Version="28.3.2" />
     <PackageVersion Include="xunit.v3" Version="0.7.0-pre.15" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.0.0-pre.49" />
diff --git a/src/Tests/Sync.cs b/src/Tests/Sync.cs
index dee0a2b..8e69d7b 100644
--- a/src/Tests/Sync.cs
+++ b/src/Tests/Sync.cs
@@ -1,4 +1,5 @@
-public class Sync
+#if NET9_0
+public class Sync
 {
     [Fact]
     [Trait("Category", "Integration")]
@@ -204,4 +205,5 @@ static IDictionary<string, List<State>> WriteRows(string jsonPath, List<IGroupin
 
     static List<State> ProcessCountry(string country, List<PostCodeRow> rows, string directory) =>
         CountrySerializer.Serialize(country, rows, directory);
-}
\ No newline at end of file
+}
+#endif
\ No newline at end of file