diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c7f731d..39545fa 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -33,6 +33,10 @@ jobs:
       - name: Restore
         run: dotnet restore
 
+      # Yarn build in advance to avoid cuncurrency issues due to multi target build
+      - name: Yarn Build
+        run: dotnet build -c Release ./src/LLL.DurableTask.Ui -f:net9.0 -t:YarnBuild --no-restore
+
       - name: Build
         run: dotnet build -c Release --no-restore
 
@@ -50,7 +54,7 @@ jobs:
             --exclude-sources "**/Migrations/**"
 
       - name: Test
-        run: dotnet test -c Release --no-build
+        run: dotnet test -c Release -f:net9.0 --no-build
 
       - name: Report coverage
         run: |
diff --git a/src/LLL.DurableTask.Api/LLL.DurableTask.Api.csproj b/src/LLL.DurableTask.Api/LLL.DurableTask.Api.csproj
index c6f010e..de3be66 100644
--- a/src/LLL.DurableTask.Api/LLL.DurableTask.Api.csproj
+++ b/src/LLL.DurableTask.Api/LLL.DurableTask.Api.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/src/LLL.DurableTask.AzureStorage/LLL.DurableTask.AzureStorage.csproj b/src/LLL.DurableTask.AzureStorage/LLL.DurableTask.AzureStorage.csproj
index 326e717..900f42d 100644
--- a/src/LLL.DurableTask.AzureStorage/LLL.DurableTask.AzureStorage.csproj
+++ b/src/LLL.DurableTask.AzureStorage/LLL.DurableTask.AzureStorage.csproj
@@ -1,16 +1,23 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
     <Description>Extends Durable Task Azure Storage</Description>
   </PropertyGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
+    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="8.0.0" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.Azure.DurableTask.AzureStorage" Version="2.0.1" />
-    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="9.0.2" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/LLL.DurableTask.Client/LLL.DurableTask.Client.csproj b/src/LLL.DurableTask.Client/LLL.DurableTask.Client.csproj
index 656507e..2646f2b 100644
--- a/src/LLL.DurableTask.Client/LLL.DurableTask.Client.csproj
+++ b/src/LLL.DurableTask.Client/LLL.DurableTask.Client.csproj
@@ -1,17 +1,25 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
     <Description>Configure Durable Task client</Description>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.2" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/LLL.DurableTask.Core/LLL.DurableTask.Core.csproj b/src/LLL.DurableTask.Core/LLL.DurableTask.Core.csproj
index d496962..30801e8 100644
--- a/src/LLL.DurableTask.Core/LLL.DurableTask.Core.csproj
+++ b/src/LLL.DurableTask.Core/LLL.DurableTask.Core.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/src/LLL.DurableTask.EFCore.InMemory/LLL.DurableTask.EFCore.InMemory.csproj b/src/LLL.DurableTask.EFCore.InMemory/LLL.DurableTask.EFCore.InMemory.csproj
index 9c1eae3..1f4b5c1 100644
--- a/src/LLL.DurableTask.EFCore.InMemory/LLL.DurableTask.EFCore.InMemory.csproj
+++ b/src/LLL.DurableTask.EFCore.InMemory/LLL.DurableTask.EFCore.InMemory.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
@@ -9,8 +9,15 @@
     <Description>InMemory extensions to EFCore Durable Task Storage</Description>
   </PropertyGroup>
 
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
     <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.2" />
+  </ItemGroup>
+  
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="8.0.13" />
+  </ItemGroup>
+
+  <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/LLL.DurableTask.EFCore.MySql/LLL.DurableTask.EFCore.MySql.csproj b/src/LLL.DurableTask.EFCore.MySql/LLL.DurableTask.EFCore.MySql.csproj
index 2fb774b..307426a 100644
--- a/src/LLL.DurableTask.EFCore.MySql/LLL.DurableTask.EFCore.MySql.csproj
+++ b/src/LLL.DurableTask.EFCore.MySql/LLL.DurableTask.EFCore.MySql.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -12,13 +12,24 @@
     <ProjectReference Include="..\LLL.DurableTask.EFCore\LLL.DurableTask.EFCore.csproj" />
   </ItemGroup>
   
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
     <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="9.0.0-preview.3.efcore.9.0.0" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.13">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="8.0.3" />
+  </ItemGroup>
+  
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
+  </ItemGroup>
+
 </Project>
diff --git a/src/LLL.DurableTask.EFCore.PostgreSQL/LLL.DurableTask.EFCore.PostgreSQL.csproj b/src/LLL.DurableTask.EFCore.PostgreSQL/LLL.DurableTask.EFCore.PostgreSQL.csproj
index 51f3689..9242a06 100644
--- a/src/LLL.DurableTask.EFCore.PostgreSQL/LLL.DurableTask.EFCore.PostgreSQL.csproj
+++ b/src/LLL.DurableTask.EFCore.PostgreSQL/LLL.DurableTask.EFCore.PostgreSQL.csproj
@@ -1,22 +1,33 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
     <Description>PostgreSQL extensions to EFCore Durable Task Storage</Description>
   </PropertyGroup>
 
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.13">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.11" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\LLL.DurableTask.EFCore\LLL.DurableTask.EFCore.csproj" />
   </ItemGroup>
diff --git a/src/LLL.DurableTask.EFCore.SqlServer/LLL.DurableTask.EFCore.SqlServer.csproj b/src/LLL.DurableTask.EFCore.SqlServer/LLL.DurableTask.EFCore.SqlServer.csproj
index 99bcb4a..9385fd6 100644
--- a/src/LLL.DurableTask.EFCore.SqlServer/LLL.DurableTask.EFCore.SqlServer.csproj
+++ b/src/LLL.DurableTask.EFCore.SqlServer/LLL.DurableTask.EFCore.SqlServer.csproj
@@ -1,20 +1,34 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
     <Description>SqlServer extensions to EFCore Durable Task Storage</Description>
   </PropertyGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="..\LLL.DurableTask.EFCore\LLL.DurableTask.EFCore.csproj" />
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.2">
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.13">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.13" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\LLL.DurableTask.EFCore\LLL.DurableTask.EFCore.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/LLL.DurableTask.EFCore/LLL.DurableTask.EFCore.csproj b/src/LLL.DurableTask.EFCore/LLL.DurableTask.EFCore.csproj
index 03b92a3..2b2a9c1 100644
--- a/src/LLL.DurableTask.EFCore/LLL.DurableTask.EFCore.csproj
+++ b/src/LLL.DurableTask.EFCore/LLL.DurableTask.EFCore.csproj
@@ -1,18 +1,26 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup>
-      <Description>EFCore implementation of Durable Task Storage</Description>
+    <Description>EFCore implementation of Durable Task Storage</Description>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.2" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.13" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="8.0.13" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/LLL.DurableTask.Server.Grpc.Client/LLL.DurableTask.Server.Grpc.Client.csproj b/src/LLL.DurableTask.Server.Grpc.Client/LLL.DurableTask.Server.Grpc.Client.csproj
index 8d664fa..3f2a029 100644
--- a/src/LLL.DurableTask.Server.Grpc.Client/LLL.DurableTask.Server.Grpc.Client.csproj
+++ b/src/LLL.DurableTask.Server.Grpc.Client/LLL.DurableTask.Server.Grpc.Client.csproj
@@ -1,17 +1,25 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
       <Description>Implements Durable Task Storage by connecting to a GRPC server</Description>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.2" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
     <PackageReference Include="Grpc.Tools" Version="2.70.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
diff --git a/src/LLL.DurableTask.Server.Grpc/LLL.DurableTask.Server.Grpc.csproj b/src/LLL.DurableTask.Server.Grpc/LLL.DurableTask.Server.Grpc.csproj
index c168240..c632ca7 100644
--- a/src/LLL.DurableTask.Server.Grpc/LLL.DurableTask.Server.Grpc.csproj
+++ b/src/LLL.DurableTask.Server.Grpc/LLL.DurableTask.Server.Grpc.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/src/LLL.DurableTask.Server/LLL.DurableTask.Server.csproj b/src/LLL.DurableTask.Server/LLL.DurableTask.Server.csproj
index 1fff608..3a76e9e 100644
--- a/src/LLL.DurableTask.Server/LLL.DurableTask.Server.csproj
+++ b/src/LLL.DurableTask.Server/LLL.DurableTask.Server.csproj
@@ -1,16 +1,23 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
     <Description>Exposes a Durable Task storage implementation</Description>
   </PropertyGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.1" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="9.0.2" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/LLL.DurableTask.Ui/LLL.DurableTask.Ui.csproj b/src/LLL.DurableTask.Ui/LLL.DurableTask.Ui.csproj
index 6643c1a..9ac228f 100644
--- a/src/LLL.DurableTask.Ui/LLL.DurableTask.Ui.csproj
+++ b/src/LLL.DurableTask.Ui/LLL.DurableTask.Ui.csproj
@@ -1,10 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
     <GenerateEmbeddedFilesManifest>true</GenerateEmbeddedFilesManifest>
     <SpaRoot>app\</SpaRoot>
     <DefaultItemExcludes>$(DefaultItemExcludes);$(SpaRoot)node_modules\**</DefaultItemExcludes>
+    <DisableBuildInParallel>true</DisableBuildInParallel>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -13,9 +14,16 @@
 
   <ItemGroup>
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
+  </ItemGroup>
+  
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
     <PackageReference Include="Microsoft.Extensions.FileProviders.Embedded" Version="9.0.2" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.Extensions.FileProviders.Embedded" Version="8.0.13" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
diff --git a/src/LLL.DurableTask.Worker/LLL.DurableTask.Worker.csproj b/src/LLL.DurableTask.Worker/LLL.DurableTask.Worker.csproj
index ce45ca6..b5dd640 100644
--- a/src/LLL.DurableTask.Worker/LLL.DurableTask.Worker.csproj
+++ b/src/LLL.DurableTask.Worker/LLL.DurableTask.Worker.csproj
@@ -1,17 +1,25 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <PropertyGroup>
     <Description>Configure Durable Task workers</Description>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.2" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Azure.DurableTask.Core" Version="3.0.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/test/LLL.DurableTask.Tests/LLL.DurableTask.Tests.csproj b/test/LLL.DurableTask.Tests/LLL.DurableTask.Tests.csproj
index d331c6c..fa304d4 100644
--- a/test/LLL.DurableTask.Tests/LLL.DurableTask.Tests.csproj
+++ b/test/LLL.DurableTask.Tests/LLL.DurableTask.Tests.csproj
@@ -1,16 +1,24 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
+    <TargetFrameworks>net9.0;net8.0</TargetFrameworks>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'" >
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.2" />
+    <PackageReference Include="System.Net.Http.Json" Version="9.0.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'" >
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.13" />
+    <PackageReference Include="System.Net.Http.Json" Version="8.0.1" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Grpc.AspNetCore" Version="2.67.0" />
     <PackageReference Include="MartinCostello.Logging.XUnit" Version="0.5.1" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.2" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
-    <PackageReference Include="System.Net.Http.Json" Version="9.0.2" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2">
       <PrivateAssets>all</PrivateAssets>