diff --git a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/AttributeDefinitionExtensionsTestFixture.cs b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/AttributeDefinitionExtensionsTestFixture.cs
index 8981ae2..f47aaa2 100644
--- a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/AttributeDefinitionExtensionsTestFixture.cs
+++ b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/AttributeDefinitionExtensionsTestFixture.cs
@@ -59,27 +59,6 @@ public void Verify_that_QueryDatatypeName_returns_expected_results()
 
             var attributeDefinitionXhtml = new AttributeDefinitionXHTML();
             Assert.That(attributeDefinitionXhtml.QueryDatatypeName(), Is.EqualTo("XHTML"));
-
-            var attributeDefinition = new TestAttributeDefinition();
-            Assert.Throws<InvalidOperationException>(() => attributeDefinition.QueryDatatypeName());
-        }
-
-        private class TestAttributeDefinition : AttributeDefinition
-        {
-            protected override DatatypeDefinition GetDatatypeDefinition()
-            {
-                throw new NotImplementedException();
-            }
-
-            protected override void SetDatatypeDefinition(DatatypeDefinition datatypeDefinition)
-            {
-                throw new NotImplementedException();
-            }
-
-            public override Task ReadXmlAsync(XmlReader reader, CancellationToken token)
-            {
-                throw new NotImplementedException();
-            }
         }
     }
 }
diff --git a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/DatatypeDefinitionExtensionsTestFixture.cs b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/DatatypeDefinitionExtensionsTestFixture.cs
index dd790e5..a9e0f23 100644
--- a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/DatatypeDefinitionExtensionsTestFixture.cs
+++ b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/DatatypeDefinitionExtensionsTestFixture.cs
@@ -59,17 +59,6 @@ public void Verify_that_QueryDatatypeName_returns_expected_results()
 
             var datatypeDefinitionXhtml = new DatatypeDefinitionXHTML();
             Assert.That(datatypeDefinitionXhtml.QueryDatatypeName(), Is.EqualTo("XHTML"));
-
-            var testDataTypeDefinition = new TestDataTypeDefinition();
-            Assert.Throws<InvalidOperationException>(() => testDataTypeDefinition.QueryDatatypeName());
-        }
-
-        private class TestDataTypeDefinition : DatatypeDefinition
-        {
-            public override Task ReadXmlAsync(XmlReader reader, CancellationToken token)
-            {
-                throw new NotImplementedException();
-            }
         }
     }
 }
diff --git a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecElementWithAttributesExtensionTestFixture.cs b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecElementWithAttributesExtensionTestFixture.cs
index aa245ef..d221eec 100644
--- a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecElementWithAttributesExtensionTestFixture.cs
+++ b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecElementWithAttributesExtensionTestFixture.cs
@@ -40,16 +40,18 @@ namespace ReqifViewer.Infrastructure.Tests.ReqIFExtensions
     public class SpecElementWithAttributesExtensionTestFixture
     {
         private ReqIF reqIf;
-        
+
         [SetUp]
         public async Task SetUp()
         {
+            var reqIfDeserializer = new ReqIFDeserializer();
+
             var cts = new CancellationTokenSource();
 
             var reqifPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "TestData", "ProR_Traceability-Template-v1.0.reqif");
 
             await using var fileStream = new FileStream(reqifPath, FileMode.Open);
-            var reqIfLoaderService = new ReqIFLoaderService();
+            var reqIfLoaderService = new ReqIFLoaderService(reqIfDeserializer);
             await reqIfLoaderService.Load(fileStream, cts.Token);
 
             this.reqIf = reqIfLoaderService.ReqIFData.Single();
diff --git a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecificationExtensionsTestFixture.cs b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecificationExtensionsTestFixture.cs
index 331b451..3fb8934 100644
--- a/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecificationExtensionsTestFixture.cs
+++ b/ReqifViewer.Infrastructure.Tests/ReqIFExtensions/SpecificationExtensionsTestFixture.cs
@@ -48,7 +48,8 @@ public async Task SetUp()
             var reqifPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "TestData", "ProR_Traceability-Template-v1.0.reqif");
 
             await using var fileStream = new FileStream(reqifPath, FileMode.Open);
-            var reqIfLoaderService = new ReqIFLoaderService();
+            var reqIfDeserializer = new ReqIFDeserializer();
+            var reqIfLoaderService = new ReqIFLoaderService(reqIfDeserializer);
             await reqIfLoaderService.Load(fileStream, cts.Token);
 
             this.reqIf = reqIfLoaderService.ReqIFData.Single();
diff --git a/ReqifViewer.Infrastructure.Tests/Services/ReqIFLoaderServiceTestFixture.cs b/ReqifViewer.Infrastructure.Tests/Services/ReqIFLoaderServiceTestFixture.cs
index c596054..b6e1c85 100644
--- a/ReqifViewer.Infrastructure.Tests/Services/ReqIFLoaderServiceTestFixture.cs
+++ b/ReqifViewer.Infrastructure.Tests/Services/ReqIFLoaderServiceTestFixture.cs
@@ -29,6 +29,8 @@ namespace ReqifViewer.Infrastructure.Tests.Services
 
     using NUnit.Framework;
 
+    using ReqIFSharp;
+
     using ReqifViewer.Infrastructure.ReqIFExtensions;
     using ReqifViewer.Infrastructure.Services;
 
@@ -42,7 +44,8 @@ public class ReqIFLoaderServiceTestFixture
         [SetUp]
         public void Setup()
         {
-            this.reqIfLoaderService = new ReqIFLoaderService();
+            var reqIfDeserializer = new ReqIFDeserializer();
+            this.reqIfLoaderService = new ReqIFLoaderService(reqIfDeserializer);
         }
 
         [Test]
diff --git a/ReqifViewer.Infrastructure/ReqifViewer.Infrastructure.csproj b/ReqifViewer.Infrastructure/ReqifViewer.Infrastructure.csproj
index f4ec740..88987f2 100644
--- a/ReqifViewer.Infrastructure/ReqifViewer.Infrastructure.csproj
+++ b/ReqifViewer.Infrastructure/ReqifViewer.Infrastructure.csproj
@@ -4,7 +4,7 @@
     <TargetFramework>net5.0</TargetFramework>
     <Company>RHEA System S.A.</Company>
     <Title>ReqifViewer.Infrastructure</Title>
-    <Version>0.6.0</Version>
+    <Version>0.7.0</Version>
     <Description>Shared Infrastructure</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam Gerené</Authors>
@@ -15,7 +15,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Components" Version="5.0.13" />
     <PackageReference Include="Microsoft.AspNetCore.WebUtilities" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.0" />
-    <PackageReference Include="ReqIFSharp" Version="5.0.0-rc5" />
+    <PackageReference Include="ReqIFSharp" Version="5.0.0" />
   </ItemGroup>
 
 </Project>
diff --git a/ReqifViewer.Infrastructure/Services/ReqIFLoaderService.cs b/ReqifViewer.Infrastructure/Services/ReqIFLoaderService.cs
index 2dc92ea..424b209 100644
--- a/ReqifViewer.Infrastructure/Services/ReqIFLoaderService.cs
+++ b/ReqifViewer.Infrastructure/Services/ReqIFLoaderService.cs
@@ -44,6 +44,8 @@ public class ReqIFLoaderService : IReqIFLoaderService
         /// </summary>
         private Stream sourceStream;
 
+        private readonly IReqIFDeSerializer reqIfDeSerializer;
+
         /// <summary>
         /// The <see cref="ILogger"/> used to log
         /// </summary>
@@ -52,12 +54,17 @@ public class ReqIFLoaderService : IReqIFLoaderService
         /// <summary>
         /// Initializes a new instance of the <see cref="ReqIFLoaderService"/>
         /// </summary>
-        /// <param name="logger">
-        /// The (injected) logger
+        /// <param name="reqIfDeSerializer">
+        /// The (injected) <see cref="IReqIFDeSerializer"/>
+        /// </param>
+        /// <param name="loggerFactory">
+        /// The (injected) <see cref="ILoggerFactory"/>
         /// </param>
-        public ReqIFLoaderService(ILogger<ReqIFLoaderService> logger = null)
+        public ReqIFLoaderService(IReqIFDeSerializer reqIfDeSerializer, ILoggerFactory loggerFactory = null)
         {
-            this.logger = logger ?? NullLogger<ReqIFLoaderService>.Instance;
+            this.reqIfDeSerializer = reqIfDeSerializer;
+
+            this.logger = loggerFactory == null ? NullLogger<ReqIFLoaderService>.Instance : loggerFactory.CreateLogger<ReqIFLoaderService>();
         }
 
         /// <summary>
@@ -130,12 +137,10 @@ public async Task Load(Stream reqIFStream, CancellationToken token)
             }
 
             IEnumerable<ReqIF> result = null;
-
-            var reqIfDeserializer = new ReqIFDeserializer();
-
+            
             var sw = Stopwatch.StartNew();
             this.logger.LogDebug("starting deserialization");
-            result = await reqIfDeserializer.DeserializeAsync(deserializationStream, token);
+            result = await this.reqIfDeSerializer.DeserializeAsync(deserializationStream, token);
             this.logger.LogDebug("deserialization finished in {time} [ms]", sw.ElapsedMilliseconds);
 
             await deserializationStream.DisposeAsync();
diff --git a/reqifviewer/Program.cs b/reqifviewer/Program.cs
index 5752bf4..d3ae989 100644
--- a/reqifviewer/Program.cs
+++ b/reqifviewer/Program.cs
@@ -28,6 +28,8 @@ namespace reqifviewer
     using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
     using Microsoft.Extensions.DependencyInjection;
 
+    using ReqIFSharp;
+
     using Radzen;
     
     using ReqifViewer.Infrastructure.Services;
@@ -51,7 +53,7 @@ public static class Program
         public static async Task Main(string[] args)
         {
             Log.Logger = new LoggerConfiguration()
-                .MinimumLevel.Verbose()
+                .MinimumLevel.Debug()
                 .MinimumLevel.Override("Microsoft", LogEventLevel.Information)
                 .Enrich.FromLogContext()
                 .WriteTo.BrowserConsole()
@@ -72,6 +74,7 @@ public static async Task Main(string[] args)
 
             builder.Services.AddGoogleAnalytics("295704041");
 
+            builder.Services.AddSingleton<IReqIFDeSerializer, ReqIFDeserializer>();
             builder.Services.AddSingleton<IReqIFLoaderService, ReqIFLoaderService>();
 
             await builder.Build().RunAsync();
diff --git a/reqifviewer/reqifviewer.csproj b/reqifviewer/reqifviewer.csproj
index a0de871..e51621d 100644
--- a/reqifviewer/reqifviewer.csproj
+++ b/reqifviewer/reqifviewer.csproj
@@ -4,7 +4,7 @@
     <TargetFramework>net5.0</TargetFramework>
     <Company>RHEA System S.A.</Company>
     <Title>reqifviewer</Title>
-    <Version>0.9.0</Version>
+    <Version>0.10.0</Version>
     <Description>Web Application to inspect ReqIF files</Description>
     <Copyright>Copyright © RHEA System S.A.</Copyright>
     <Authors>Sam Gerené</Authors>