diff --git a/.github/workflows/dependabot.yml b/.github/workflows/dependabot.yml
index 68059d6..2fa9f03 100644
--- a/.github/workflows/dependabot.yml
+++ b/.github/workflows/dependabot.yml
@@ -15,7 +15,7 @@ jobs:
     steps:
       - name: Dependabot metadata
         id: metadata
-        uses: dependabot/fetch-metadata@25dd0e34f4fe68f24cc83900b1fe3fe149efef98 #v3.1.0
+        uses: dependabot/fetch-metadata@25dd0e34f4fe68f24cc83900b1fe3fe149efef98 # v3.1.0
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Approve
diff --git a/.github/workflows/msbuild.yml b/.github/workflows/msbuild.yml
index 2501462..0236829 100644
--- a/.github/workflows/msbuild.yml
+++ b/.github/workflows/msbuild.yml
@@ -24,10 +24,10 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v5
+        uses: actions/setup-dotnet@9a946fdbd5fb07b82b2f5a4466058b876ab72bb2 # v5.3.0
         with:
           dotnet-version: 8.0.x
 
diff --git a/.github/workflows/nuget.yml b/.github/workflows/nuget.yml
index bc805b9..df687f1 100644
--- a/.github/workflows/nuget.yml
+++ b/.github/workflows/nuget.yml
@@ -14,13 +14,13 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       with:
         fetch-depth: 0
 
-    - uses: microsoft/setup-msbuild@30375c66a4eea26614e0d39710365f22f8b0af57 #v3.0.0
+    - uses: microsoft/setup-msbuild@30375c66a4eea26614e0d39710365f22f8b0af57 # v3.0.0
 
-    - uses: NuGet/setup-nuget@fd55a6f3b34392fa83fde1454582407d8c714123 #v4.0
+    - uses: NuGet/setup-nuget@fd55a6f3b34392fa83fde1454582407d8c714123 # v4.0
 
     - name: Restore NuGet packages
       run: nuget restore
diff --git a/PCAxis.Serializers/PCAxis.Serializers.csproj b/PCAxis.Serializers/PCAxis.Serializers.csproj
index 3906b58..9a20396 100644
--- a/PCAxis.Serializers/PCAxis.Serializers.csproj
+++ b/PCAxis.Serializers/PCAxis.Serializers.csproj
@@ -33,6 +33,7 @@
     <PackageReference Include="PCAxis.Query" Version="1.0.10" />
     <PackageReference Include="ClosedXML" Version="0.97.0" />
     <PackageReference Include="PxWeb.Api2.Server.Models" Version="2.3.2" />
+    <PackageReference Include="Snappier" Version="1.3.1" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
 
   </ItemGroup>
@@ -47,18 +48,18 @@
       <PackagePath></PackagePath>
     </None>
   </ItemGroup>
-  
-<ItemGroup>
-  <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
-    <_Parameter1>UnitTests</_Parameter1>
-  </AssemblyAttribute>
-</ItemGroup>
 
-<ItemGroup>
+  <ItemGroup>
+    <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
+      <_Parameter1>UnitTests</_Parameter1>
+    </AssemblyAttribute>
+  </ItemGroup>
+
+  <ItemGroup>
     <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
       <_Parameter1>DynamicProxyGenAssembly2</_Parameter1>
     </AssemblyAttribute>
-</ItemGroup>
+  </ItemGroup>
+
 
-  
 </Project>
diff --git a/UnitTests/JsonStat/TestAllFiles.cs b/UnitTests/JsonStat/TestAllFiles.cs
index faaf5ae..4f14ec9 100644
--- a/UnitTests/JsonStat/TestAllFiles.cs
+++ b/UnitTests/JsonStat/TestAllFiles.cs
@@ -10,10 +10,9 @@
 
 using PCAxis.Paxiom;
 
-[assembly: DoNotParallelize]
-
 namespace UnitTests.JsonStat
 {
+    [DoNotParallelize]
     [TestClass]
     [DeploymentItem("TestFiles", "TestFiles")]
     public class TestAllFiles
diff --git a/UnitTests/UnitTests.csproj b/UnitTests/UnitTests.csproj
index bd2a440..4532100 100644
--- a/UnitTests/UnitTests.csproj
+++ b/UnitTests/UnitTests.csproj
@@ -7,10 +7,10 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="MSTest.TestAdapter" Version="4.0.2" />
-    <PackageReference Include="MSTest.TestFramework" Version="4.0.2" />
+    <PackageReference Include="MSTest.TestAdapter" Version="4.2.3" />
+    <PackageReference Include="MSTest.TestFramework" Version="4.2.3" />
     <PackageReference Include="coverlet.collector" Version="8.0.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
@@ -18,6 +18,7 @@
 
     <PackageReference Include="Parquet.Net" Version="4.25.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
+    <PackageReference Include="Snappier" Version="1.3.1" />
   </ItemGroup>