diff --git a/samples/HttpSend/HttpSend.csproj b/samples/HttpSend/HttpSend.csproj
index d834811..5f04feb 100644
--- a/samples/HttpSend/HttpSend.csproj
+++ b/samples/HttpSend/HttpSend.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="3.1.0" />
+    <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="4.1.1" />
     <ProjectReference Include="..\..\src\CloudNative.CloudEvents\CloudNative.CloudEvents.csproj" />
     <ProjectReference Include="..\..\src\CloudNative.CloudEvents.NewtonsoftJson\CloudNative.CloudEvents.NewtonsoftJson.csproj" />
   </ItemGroup>
diff --git a/src/CloudNative.CloudEvents.Amqp/CloudNative.CloudEvents.Amqp.csproj b/src/CloudNative.CloudEvents.Amqp/CloudNative.CloudEvents.Amqp.csproj
index 2680861..b464903 100644
--- a/src/CloudNative.CloudEvents.Amqp/CloudNative.CloudEvents.Amqp.csproj
+++ b/src/CloudNative.CloudEvents.Amqp/CloudNative.CloudEvents.Amqp.csproj
@@ -9,8 +9,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AMQPNetLite" Version="2.4.2" />
-    <PackageReference Include="AMQPNetLite.Serialization" Version="2.4.2" />
+    <PackageReference Include="AMQPNetLite" Version="2.4.11" />
+    <PackageReference Include="AMQPNetLite.Serialization" Version="2.4.11" />
     <ProjectReference Include="..\CloudNative.CloudEvents\CloudNative.CloudEvents.csproj" />
     <!-- Source-only package with nullable reference annotations. -->
     <PackageReference Include="Nullable" Version="1.3.1" PrivateAssets="All" />
diff --git a/src/CloudNative.CloudEvents.AspNetCore/CloudNative.CloudEvents.AspNetCore.csproj b/src/CloudNative.CloudEvents.AspNetCore/CloudNative.CloudEvents.AspNetCore.csproj
index 6898ff3..22fcaa3 100644
--- a/src/CloudNative.CloudEvents.AspNetCore/CloudNative.CloudEvents.AspNetCore.csproj
+++ b/src/CloudNative.CloudEvents.AspNetCore/CloudNative.CloudEvents.AspNetCore.csproj
@@ -9,12 +9,12 @@
   </PropertyGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' != 'netstandard2.0' and '$(TargetFramework)' != 'netstandard2.1'">
-    <FrameworkReference Include="Microsoft.AspNetCore.App"/>
+    <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' or '$(TargetFramework)' == 'netstandard2.1'">
     <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.1.34" />
-    <PackageReference Include="System.Text.Encodings.Web" Version="6.0.0" />
+    <PackageReference Include="System.Text.Encodings.Web" Version="8.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/CloudNative.CloudEvents.Avro/CloudNative.CloudEvents.Avro.csproj b/src/CloudNative.CloudEvents.Avro/CloudNative.CloudEvents.Avro.csproj
index 5534740..0b84702 100644
--- a/src/CloudNative.CloudEvents.Avro/CloudNative.CloudEvents.Avro.csproj
+++ b/src/CloudNative.CloudEvents.Avro/CloudNative.CloudEvents.Avro.csproj
@@ -9,13 +9,13 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Apache.Avro" Version="1.11.1" />
+    <PackageReference Include="Apache.Avro" Version="1.11.3" />
     <!-- 
       - Explicit dependency just to avoid a vulnerable version being exposed via Apache.Avro.
       - If Apache.Avro publishes a new version that updates the dependency (to 13.0.1 or higher)
       - we can remove our explicit dependency.
       -->
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <ProjectReference Include="..\CloudNative.CloudEvents\CloudNative.CloudEvents.csproj" />
   </ItemGroup>
 
diff --git a/src/CloudNative.CloudEvents.Kafka/CloudNative.CloudEvents.Kafka.csproj b/src/CloudNative.CloudEvents.Kafka/CloudNative.CloudEvents.Kafka.csproj
index 1971882..7f8cac1 100644
--- a/src/CloudNative.CloudEvents.Kafka/CloudNative.CloudEvents.Kafka.csproj
+++ b/src/CloudNative.CloudEvents.Kafka/CloudNative.CloudEvents.Kafka.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Confluent.Kafka" Version="1.6.3" />
+    <PackageReference Include="Confluent.Kafka" Version="1.9.3" />
     <ProjectReference Include="..\CloudNative.CloudEvents\CloudNative.CloudEvents.csproj" />
   </ItemGroup>
 
diff --git a/src/CloudNative.CloudEvents.NewtonsoftJson/CloudNative.CloudEvents.NewtonsoftJson.csproj b/src/CloudNative.CloudEvents.NewtonsoftJson/CloudNative.CloudEvents.NewtonsoftJson.csproj
index 6bd7a69..7716751 100644
--- a/src/CloudNative.CloudEvents.NewtonsoftJson/CloudNative.CloudEvents.NewtonsoftJson.csproj
+++ b/src/CloudNative.CloudEvents.NewtonsoftJson/CloudNative.CloudEvents.NewtonsoftJson.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <ProjectReference Include="..\CloudNative.CloudEvents\CloudNative.CloudEvents.csproj" />
   </ItemGroup>
 
diff --git a/src/CloudNative.CloudEvents.Protobuf/CloudNative.CloudEvents.Protobuf.csproj b/src/CloudNative.CloudEvents.Protobuf/CloudNative.CloudEvents.Protobuf.csproj
index cbee993..b490011 100644
--- a/src/CloudNative.CloudEvents.Protobuf/CloudNative.CloudEvents.Protobuf.csproj
+++ b/src/CloudNative.CloudEvents.Protobuf/CloudNative.CloudEvents.Protobuf.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.22.0" />
+    <PackageReference Include="Google.Protobuf" Version="3.27.3" />
     
     <!-- Be explicit about not including these files in the package. -->
     <None Include="README.md" />
diff --git a/src/Directory.Build.targets b/src/Directory.Build.targets
index 573166a..c4e40ba 100644
--- a/src/Directory.Build.targets
+++ b/src/Directory.Build.targets
@@ -10,7 +10,7 @@
   
   <!-- Use SourceLink for all production projects, and include the licence file -->
   <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All"/>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All"/>
     <None Include="$(RepoRoot)/LICENSE" Pack="true" PackagePath="" />
   </ItemGroup>
 </Project>
diff --git a/test/CloudNative.CloudEvents.IntegrationTests/CloudNative.CloudEvents.IntegrationTests.csproj b/test/CloudNative.CloudEvents.IntegrationTests/CloudNative.CloudEvents.IntegrationTests.csproj
index 4fe867f..1fbdc18 100644
--- a/test/CloudNative.CloudEvents.IntegrationTests/CloudNative.CloudEvents.IntegrationTests.csproj
+++ b/test/CloudNative.CloudEvents.IntegrationTests/CloudNative.CloudEvents.IntegrationTests.csproj
@@ -5,10 +5,13 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="6.0.14" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="6.0.32" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
+    <PackageReference Include="xunit" Version="2.9.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/test/CloudNative.CloudEvents.UnitTests/CloudNative.CloudEvents.UnitTests.csproj b/test/CloudNative.CloudEvents.UnitTests/CloudNative.CloudEvents.UnitTests.csproj
index 9c623a2..22f1232 100644
--- a/test/CloudNative.CloudEvents.UnitTests/CloudNative.CloudEvents.UnitTests.csproj
+++ b/test/CloudNative.CloudEvents.UnitTests/CloudNative.CloudEvents.UnitTests.csproj
@@ -11,13 +11,16 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.console" Version="2.4.2">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
+    <PackageReference Include="xunit" Version="2.9.0" />
+    <PackageReference Include="xunit.runner.console" Version="2.9.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/test/Directory.Build.targets b/test/Directory.Build.targets
index 573166a..c4e40ba 100644
--- a/test/Directory.Build.targets
+++ b/test/Directory.Build.targets
@@ -10,7 +10,7 @@
   
   <!-- Use SourceLink for all production projects, and include the licence file -->
   <ItemGroup>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All"/>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All"/>
     <None Include="$(RepoRoot)/LICENSE" Pack="true" PackagePath="" />
   </ItemGroup>
 </Project>