diff --git a/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationError.cs b/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationError.cs
index 4971c14..d4ba697 100644
--- a/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationError.cs
+++ b/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationError.cs
@@ -4,7 +4,6 @@
 
 namespace LogicBuilder.Workflow.ComponentModel.Compiler
 {
-    [Serializable()]
     public sealed class ValidationError(string errorText, int errorNumber, bool isWarning, string propertyName)
     {
         private readonly string errorText = errorText;
diff --git a/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationErrorCollection.cs b/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationErrorCollection.cs
index b5b52e7..2d533b1 100644
--- a/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationErrorCollection.cs
+++ b/LogicBuilder.Workflow.ComponentModel.Serialization/ComponentModel/Compiler/ValidationErrorCollection.cs
@@ -5,7 +5,6 @@
 
 namespace LogicBuilder.Workflow.ComponentModel.Compiler
 {
-    [Serializable()]
     public sealed class ValidationErrorCollection : Collection<ValidationError>
     {
         public ValidationErrorCollection()
diff --git a/LogicBuilder.Workflow.ComponentModel.Serialization/LogicBuilder.Workflow.ComponentModel.Serialization.csproj b/LogicBuilder.Workflow.ComponentModel.Serialization/LogicBuilder.Workflow.ComponentModel.Serialization.csproj
index 580f458..305ee44 100644
--- a/LogicBuilder.Workflow.ComponentModel.Serialization/LogicBuilder.Workflow.ComponentModel.Serialization.csproj
+++ b/LogicBuilder.Workflow.ComponentModel.Serialization/LogicBuilder.Workflow.ComponentModel.Serialization.csproj
@@ -14,7 +14,7 @@
 		<EmbedUntrackedSources>true</EmbedUntrackedSources>
     <Description>Manages serialization of rule sets for .NetStandard.</Description>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
-		<PackageReleaseNotes>Refactoring to accelerate DevOps.</PackageReleaseNotes>
+		<PackageReleaseNotes>Fixes to improve maintainability and reliability.</PackageReleaseNotes>
     <PackageTags>rules serialization</PackageTags>
     <Copyright>Copyright © Microsoft 2017</Copyright>
     <RepositoryUrl>https://github.com/BpsLogicBuilder/LogicBuilder.Workflow.ComponentModel.Serialization</RepositoryUrl>
@@ -44,12 +44,12 @@
 
   <ItemGroup>
     <PackageReference Include="LogicBuilder.ComponentModel.Design.Serialization" Version="2.0.9" />
-    <PackageReference Include="System.CodeDom" Version="10.0.2" />
+    <PackageReference Include="System.CodeDom" Version="10.0.3" />
     <PackageReference Include="MinVer" Version="7.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.102" PrivateAssets="All" />
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.103" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorCollectionTest.cs b/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorCollectionTest.cs
index feac83a..c8199e8 100644
--- a/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorCollectionTest.cs
+++ b/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorCollectionTest.cs
@@ -519,5 +519,22 @@ public void AddRange_WithValidationErrorCollection_AddsAllItems()
         }
 
         #endregion
+
+        #region Serialization Tests
+
+        [Fact]
+        public void ValidationErrorCollection_DoesNotHaveSerializableAttribute()
+        {
+            // Arrange
+            var type = typeof(ValidationErrorCollection);
+
+            // Act
+            var attributes = type.GetCustomAttributes(typeof(SerializableAttribute), false);
+
+            // Assert
+            Assert.Empty(attributes);
+        }
+
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorTest.cs b/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorTest.cs
index 84633d0..03df5ba 100644
--- a/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorTest.cs
+++ b/Workflow.ComponentModel.Serialization.Tests/ComponentModel/Compiler/ValidationErrorTest.cs
@@ -573,7 +573,7 @@ public void ToString_ReturnsExpectedFormat(int errorNumber, bool isWarning, stri
         #region Serialization Tests
 
         [Fact]
-        public void ValidationError_HasSerializableAttribute()
+        public void ValidationError_DoesNotHaveSerializableAttribute()
         {
             // Arrange
             var type = typeof(ValidationError);
@@ -582,7 +582,7 @@ public void ValidationError_HasSerializableAttribute()
             var attributes = type.GetCustomAttributes(typeof(SerializableAttribute), false);
 
             // Assert
-            Assert.NotEmpty(attributes);
+            Assert.Empty(attributes);
         }
 
         #endregion
diff --git a/Workflow.ComponentModel.Serialization.Tests/Workflow.ComponentModel.Serialization.Tests.csproj b/Workflow.ComponentModel.Serialization.Tests/Workflow.ComponentModel.Serialization.Tests.csproj
index 2ed3025..99f9ce2 100644
--- a/Workflow.ComponentModel.Serialization.Tests/Workflow.ComponentModel.Serialization.Tests.csproj
+++ b/Workflow.ComponentModel.Serialization.Tests/Workflow.ComponentModel.Serialization.Tests.csproj
@@ -13,11 +13,11 @@
 	<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'" />
 
 	<ItemGroup>
-		<PackageReference Include="coverlet.msbuild" Version="6.0.4">
+		<PackageReference Include="coverlet.msbuild" Version="8.0.0">
 			<PrivateAssets>all</PrivateAssets>
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
 		<PackageReference Include="Moq" Version="4.20.72" />
 		<PackageReference Include="xunit.v3" Version="3.2.2" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">