diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8bdadde9c..614c14d01 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,23 +16,23 @@ jobs:
     - name: Install tools
       if: matrix.os == 'ubuntu-latest'
       run: sudo apt-get -yq install mono-vbnc dos2unix
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v7
       with:
         submodules: true
     - name: Setup .NET Core 2.1
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v6
       with:
         dotnet-version: '2.1.x'
     - name: Setup .NET Core 3.1
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v6
       with:
         dotnet-version: '3.1.x'
     - name: Setup .NET 5.0
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v6
       with:
         dotnet-version: '5.0.x'
     - name: Setup .NET 6.0
-      uses: actions/setup-dotnet@v1
+      uses: actions/setup-dotnet@v6
       with:
         dotnet-version: '6.0.x'
     - name: Version Information
@@ -45,7 +45,7 @@ jobs:
       run: pwsh make.ps1
     - name: Package
       run: pwsh make.ps1 package
-    - uses: actions/upload-artifact@v2
+    - uses: actions/upload-artifact@v7
       with:
         name: packages
         path: Package/Release/Packages
diff --git a/Directory.Build.props b/Directory.Build.props
index 96dfe335c..3c8502449 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -103,7 +103,7 @@
     <BaseOutputPath>$(RootDir)bin\$(Configuration)</BaseOutputPath>
     <OutputPath>$(BaseOutputPath)</OutputPath>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <WarningsNotAsErrors>618;429;219;1717;162;414</WarningsNotAsErrors>
+    <WarningsNotAsErrors>618;429;219;1717;162;414;NU1900;CA1859;CA1861</WarningsNotAsErrors>
     <NoWarn>1591;1584;1574;1685;1573</NoWarn>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
diff --git a/NuGet.config b/NuGet.config
index a697dc8e0..b486c587e 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -4,7 +4,7 @@
     <add key="globalPackagesFolder" value="./packages" />
   </config>
   <packageSources>
-    <add key="nuget.org" value="https://api.nuget.org/api/v3/index.json" />
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
     <add key="nunit.myget.org" value="https://www.myget.org/F/nunit/api/v3/index.json" />
   </packageSources>
 </configuration>
diff --git a/Src/IronPython/IronPython.csproj b/Src/IronPython/IronPython.csproj
index f9749b961..8ed0a8e56 100644
--- a/Src/IronPython/IronPython.csproj
+++ b/Src/IronPython/IronPython.csproj
@@ -61,7 +61,7 @@
     </PackageReference>
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
+  <ItemGroup Condition=" '$(TargetFramework)' != 'net45' ">
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.6.0" />
   </ItemGroup>
 
diff --git a/Src/IronPython/Runtime/PythonContext.cs b/Src/IronPython/Runtime/PythonContext.cs
index b604236ed..25a496c7e 100644
--- a/Src/IronPython/Runtime/PythonContext.cs
+++ b/Src/IronPython/Runtime/PythonContext.cs
@@ -44,6 +44,15 @@ namespace IronPython.Runtime
     public delegate int HashDelegate(object o, ref HashDelegate dlg);
 
     public sealed partial class PythonContext : LanguageContext {
+        static PythonContext() {
+            try {
+#if NETCOREAPP || NETSTANDARD
+                Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+#endif
+            } catch {
+            }
+        }
+
         internal static readonly string/*!*/ IronPythonDisplayName = CurrentVersion.DisplayName;
         internal const string/*!*/ IronPythonNames = "IronPython;Python;py";
         internal const string/*!*/ IronPythonFileExtensions = ".py";