diff --git a/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj b/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj
index 3b866dc4..8c9dc6f7 100644
--- a/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj
+++ b/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj
@@ -26,7 +26,7 @@
     <PackageReference Include="Glob.cs" Version="5.1.766" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.3.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
-    <PackageReference Include="System.CodeDom" Version="6.0.0" />
+    <PackageReference Include="System.CodeDom" Version="7.0.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="6.0.0" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
diff --git a/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj b/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj
index 233ee716..124a5785 100644
--- a/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj
+++ b/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj
@@ -43,7 +43,7 @@
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
-    <PackageReference Include="System.CodeDom" Version="6.0.0" />
+    <PackageReference Include="System.CodeDom" Version="7.0.0" />
   </ItemGroup>
 
   <ItemGroup>