diff --git a/SabreTools.RedumpLib/ExtensionAttribute.cs b/SabreTools.RedumpLib/ExtensionAttribute.cs
new file mode 100644
index 0000000..f7d035b
--- /dev/null
+++ b/SabreTools.RedumpLib/ExtensionAttribute.cs
@@ -0,0 +1,9 @@
+#if NET20
+
+namespace System.Runtime.CompilerServices
+{
+    [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Method)]
+    internal sealed class ExtensionAttribute : Attribute {}
+}
+
+#endif
\ No newline at end of file
diff --git a/SabreTools.RedumpLib/SabreTools.RedumpLib.csproj b/SabreTools.RedumpLib/SabreTools.RedumpLib.csproj
index 08b5839..8c0bbf0 100644
--- a/SabreTools.RedumpLib/SabreTools.RedumpLib.csproj
+++ b/SabreTools.RedumpLib/SabreTools.RedumpLib.csproj
@@ -40,7 +40,7 @@
 
     <!-- Support for old .NET versions -->
     <ItemGroup Condition="$(TargetFramework.StartsWith(`net2`))">
-        <PackageReference Include="Net30.LinqBridge" Version="1.3.0" />
+        <PackageReference Include="Net35.Actions" Version="1.1.0" />
     </ItemGroup>
     <ItemGroup Condition="$(TargetFramework.StartsWith(`net2`)) OR $(TargetFramework.StartsWith(`net3`)) OR $(TargetFramework.StartsWith(`net40`))">
         <PackageReference Include="MinAsyncBridge" Version="0.12.4" />