diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3d24f88d..d32d6863 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,6 +8,9 @@ on:
   workflow_dispatch:
 env:
   DOTNET_NOLOGO: true
+defaults:
+  run:
+    shell: pwsh
 jobs:
   build:
     name: ${{ matrix.name }}
@@ -22,20 +25,21 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.2.0
+        uses: actions/checkout@v4.1.1
         with:
           fetch-depth: 0
       - name: Setup .NET SDK
-        uses: actions/setup-dotnet@v3.0.3
+        uses: actions/setup-dotnet@v4.0.0
         with:
           dotnet-version: |
+            8.0.x
             7.0.x
             6.0.x
       - name: Build
         run: dotnet build src --configuration Release
       - name: Upload packages
         if: matrix.name == 'Windows'
-        uses: actions/upload-artifact@v3.1.1
+        uses: actions/upload-artifact@v4.3.1
         with:
           name: NuGet packages
           path: nugets/
@@ -47,4 +51,4 @@ jobs:
           mongodb-port: 27018
           mongodb-replica-set: tr0
       - name: Run tests
-        uses: Particular/run-tests-action@v1.4.0
+        uses: Particular/run-tests-action@v1.7.0
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 19b9d2a2..b40de5c3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,18 +6,21 @@ on:
       - '[0-9]+.[0-9]+.[0-9]+-*'
 env:
   DOTNET_NOLOGO: true
+defaults:
+  run:
+    shell: pwsh
 jobs:
   release:
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.2.0
+        uses: actions/checkout@v4.1.1
         with:
           fetch-depth: 0     
       - name: Setup .NET SDK
-        uses: actions/setup-dotnet@v3.0.3
+        uses: actions/setup-dotnet@v4.0.0
         with:
-          dotnet-version: 7.0.x           
+          dotnet-version: 8.0.x
       - name: Build
         run: dotnet build src --configuration Release
       - name: Sign NuGet packages
@@ -28,12 +31,13 @@ jobs:
           client-secret: ${{ secrets.AZURE_KEY_VAULT_CLIENT_SECRET }}
           certificate-name: ${{ secrets.AZURE_KEY_VAULT_CERTIFICATE_NAME }}
       - name: Publish artifacts
-        uses: actions/upload-artifact@v3.1.1
+        uses: actions/upload-artifact@v4.3.1
         with:
           name: nugets
           path: nugets/*
           retention-days: 1
       - name: Deploy
-        uses: Particular/push-octopus-package-action@v1.0.0
+        # Does not follow standard practice of targeting explicit versions because configuration is tightly coupled to Octopus Deploy configuration
+        uses: Particular/push-octopus-package-action@main
         with:
           octopus-deploy-api-key: ${{ secrets.OCTOPUS_DEPLOY_API_KEY }}
diff --git a/src/NServiceBus.Storage.MongoDB.AcceptanceTests/NServiceBus.Storage.MongoDB.AcceptanceTests.csproj b/src/NServiceBus.Storage.MongoDB.AcceptanceTests/NServiceBus.Storage.MongoDB.AcceptanceTests.csproj
index a49b920b..ccef15de 100644
--- a/src/NServiceBus.Storage.MongoDB.AcceptanceTests/NServiceBus.Storage.MongoDB.AcceptanceTests.csproj
+++ b/src/NServiceBus.Storage.MongoDB.AcceptanceTests/NServiceBus.Storage.MongoDB.AcceptanceTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net462;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     <NoWarn>$(NoWarn);SYSLIB0021</NoWarn>
   </PropertyGroup>
@@ -11,11 +11,11 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NServiceBus.AcceptanceTests.Sources" Version="7.8.0" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="MongoDB.Driver" Version="2.19.1" />
   </ItemGroup>
 
diff --git a/src/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests.csproj b/src/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests.csproj
index a49b920b..ccef15de 100644
--- a/src/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests.csproj
+++ b/src/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests/NServiceBus.Storage.MongoDB.NoTx.AcceptanceTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net462;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     <NoWarn>$(NoWarn);SYSLIB0021</NoWarn>
   </PropertyGroup>
@@ -11,11 +11,11 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NServiceBus.AcceptanceTests.Sources" Version="7.8.0" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="MongoDB.Driver" Version="2.19.1" />
   </ItemGroup>
 
diff --git a/src/NServiceBus.Storage.MongoDB.Tests/NServiceBus.Storage.MongoDB.Tests.csproj b/src/NServiceBus.Storage.MongoDB.Tests/NServiceBus.Storage.MongoDB.Tests.csproj
index d67ef135..eac70876 100644
--- a/src/NServiceBus.Storage.MongoDB.Tests/NServiceBus.Storage.MongoDB.Tests.csproj
+++ b/src/NServiceBus.Storage.MongoDB.Tests/NServiceBus.Storage.MongoDB.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net462;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
   </PropertyGroup>
 
@@ -10,12 +10,12 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="MongoDB.Driver" Version="2.19.1" />
     <PackageReference Include="NServiceBus" Version="7.8.0" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.4.2" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Particular.Approvals" Version="0.4.1" />
     <PackageReference Include="PublicApiGenerator" Version="11.0.0" />
   </ItemGroup>
diff --git a/src/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests.csproj b/src/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests.csproj
index e8c55c43..32920ae0 100644
--- a/src/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests.csproj
+++ b/src/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests/NServiceBus.Storage.MongoDB.TransactionalSession.AcceptanceTests.csproj
@@ -1,19 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net462;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
     <LangVersion>10.0</LangVersion>
     <!-- We want the root namespace to match the transactional session one -->
     <RootNamespace>NServiceBus.TransactionalSession.AcceptanceTests</RootNamespace>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="NServiceBus.AcceptanceTesting" Version="7.8.0" />
     <PackageReference Include="NServiceBus.TransactionalSession" Version="1.0.0" />
-    <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="MongoDB.Driver" Version="2.19.1" />
   </ItemGroup>
 
diff --git a/src/NServiceBus.Storage.MongoDB.TransactionalSession.Tests/NServiceBus.Storage.MongoDB.TransactionalSession.Tests.csproj b/src/NServiceBus.Storage.MongoDB.TransactionalSession.Tests/NServiceBus.Storage.MongoDB.TransactionalSession.Tests.csproj
index 737186a6..2ff98f94 100644
--- a/src/NServiceBus.Storage.MongoDB.TransactionalSession.Tests/NServiceBus.Storage.MongoDB.TransactionalSession.Tests.csproj
+++ b/src/NServiceBus.Storage.MongoDB.TransactionalSession.Tests/NServiceBus.Storage.MongoDB.TransactionalSession.Tests.csproj
@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net462;net6.0;net7.0</TargetFrameworks>
+    <TargetFrameworks>net481;net6.0;net7.0;net8.0</TargetFrameworks>
     <LangVersion>10.0</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="GitHubActionsTestLogger" Version="2.0.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+    <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Nunit" Version="3.13.3" />
   </ItemGroup>