diff --git a/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj b/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj
index 8510db1b..9b9ab991 100644
--- a/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj
+++ b/XmlSchemaClassGenerator.Tests/XmlSchemaClassGenerator.Tests.csproj
@@ -33,7 +33,7 @@
     <PackageReference Include="Microsoft.Net.Compilers.netcore" Version="1.3.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.0" />
     <PackageReference Include="System.CodeDom" Version="5.0.0" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.7.1" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0" />
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
       <PrivateAssets>all</PrivateAssets>
diff --git a/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj b/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj
index ed32923f..f39fbbbf 100644
--- a/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj
+++ b/XmlSchemaClassGenerator/XmlSchemaClassGenerator.csproj
@@ -50,7 +50,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.7.1" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0" />
   </ItemGroup>
 
 </Project>