diff --git a/Source/Csla.Analyzers/Csla.Analyzers/Csla.Analyzers.csproj b/Source/Csla.Analyzers/Csla.Analyzers/Csla.Analyzers.csproj
index 360a337504..e6dabd009a 100644
--- a/Source/Csla.Analyzers/Csla.Analyzers/Csla.Analyzers.csproj
+++ b/Source/Csla.Analyzers/Csla.Analyzers/Csla.Analyzers.csproj
@@ -16,7 +16,7 @@
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.10.0" PrivateAssets="all" />
     <PackageReference Update="NETStandard.Library" PrivateAssets="all" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All" />
-    <PackageReference Include="Backport.System.Threading.Lock" Version="2.0.3" />
+    <PackageReference Include="Backport.System.Threading.Lock" Version="2.0.5" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Source/GraphMergerTest/GraphMergerTest.Dal/GraphMergerTest.Dal.csproj b/Source/GraphMergerTest/GraphMergerTest.Dal/GraphMergerTest.Dal.csproj
index 5c3b524da4..8cda09035a 100644
--- a/Source/GraphMergerTest/GraphMergerTest.Dal/GraphMergerTest.Dal.csproj
+++ b/Source/GraphMergerTest/GraphMergerTest.Dal/GraphMergerTest.Dal.csproj
@@ -5,7 +5,7 @@
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Backport.System.Threading.Lock" Version="2.0.3" />   
+    <PackageReference Include="Backport.System.Threading.Lock" Version="2.0.5" />   
     <PackageReference Include="System.Memory.Data" Version="8.0.0" />
     <PackageReference Include="System.Text.Json" Version="8.0.4" />
   </ItemGroup>