diff --git a/tools/UglyToad.PdfPig.Package/UglyToad.PdfPig.Package.csproj b/tools/UglyToad.PdfPig.Package/UglyToad.PdfPig.Package.csproj
index 4ba027dac..3cba491b1 100644
--- a/tools/UglyToad.PdfPig.Package/UglyToad.PdfPig.Package.csproj
+++ b/tools/UglyToad.PdfPig.Package/UglyToad.PdfPig.Package.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;net462;net471;net6.0;net8.0</TargetFrameworks>
     <PackageId>PdfPig</PackageId>
@@ -32,8 +32,8 @@
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)'=='net462' OR '$(TargetFramework)'=='net471' OR '$(TargetFramework)'=='netstandard2.0'">
-    <PackageReference Include="Microsoft.Bcl.HashCode" Version="1.1.1" />
-    <PackageReference Include="System.Memory" Version="4.5.5" />
+    <PackageReference Include="Microsoft.Bcl.HashCode" Version="6.0.0" />
+    <PackageReference Include="System.Memory" Version="4.6.0" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\UglyToad.PdfPig.Core\UglyToad.PdfPig.Core.csproj" PrivateAssets="all" />