diff --git a/.github/workflows/gh-actions.yml b/.github/workflows/gh-actions.yml
index fac0df3..c15e5e3 100644
--- a/.github/workflows/gh-actions.yml
+++ b/.github/workflows/gh-actions.yml
@@ -6,13 +6,18 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: Free space
-        run: df -h && sudo rm -rf /usr/local/lib/android && sudo rm -rf /opt/ghc && rm -rf /opt/hostedtoolcache* && df -h
+      - name: Liberate disk space
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: true
+          large-packages: false
+          docker-images: false
+          swap-storage: false
 
       - name: Checkout Lean Same Branch
         id: lean-same-branch
@@ -38,12 +43,11 @@ jobs:
         with:
           image: quantconnect/lean:foundation
           options: -v /home/runner/work:/__w --workdir /__w/Lean.DataSource.ThetaData/Lean.DataSource.ThetaData -e QC_THETADATA_USERNAME=${{ secrets.THETADATA_USERNAME }} -e QC_THETADATA_PASSWORD=${{ secrets.THETADATA_PASSWORD }} -e QC_JOB_USER_ID=${{ secrets.JOB_USER_ID }} -e QC_API_ACCESS_TOKEN=${{ secrets.API_ACCESS_TOKEN }} -e QC_JOB_ORGANIZATION_ID=${{ secrets.JOB_ORGANIZATION_ID }}
-
-      - name: Build QuantConnect.ThetaData
-        run: dotnet build ./QuantConnect.ThetaData/QuantConnect.DataSource.ThetaData.csproj /p:Configuration=Release /v:quiet /p:WarningLevel=1
-
-      - name: Build QuantConnect.ThetaData.Tests
-        run: dotnet build ./QuantConnect.ThetaData.Tests/QuantConnect.DataSource.ThetaData.Tests.csproj /p:Configuration=Release /v:quiet /p:WarningLevel=1
-
-      - name: Run QuantConnect.ThetaData.Tests
-        run: dotnet test ./QuantConnect.ThetaData.Tests/bin/Release/QuantConnect.Lean.DataSource.ThetaData.Tests.dll
+          shell: bash
+          run: |
+            # Build QuantConnect.ThetaData
+            dotnet build ./QuantConnect.ThetaData/QuantConnect.DataSource.ThetaData.csproj /p:Configuration=Release /v:quiet /p:WarningLevel=1 && \
+            # Build QuantConnect.ThetaData.Tests
+            dotnet build ./QuantConnect.ThetaData.Tests/QuantConnect.DataSource.ThetaData.Tests.csproj /p:Configuration=Release /v:quiet /p:WarningLevel=1 && \
+            # Run QuantConnect.ThetaData.Tests
+            dotnet test ./QuantConnect.ThetaData.Tests/bin/Release/QuantConnect.Lean.DataSource.ThetaData.Tests.dll
diff --git a/QuantConnect.ThetaData.Tests/QuantConnect.DataSource.ThetaData.Tests.csproj b/QuantConnect.ThetaData.Tests/QuantConnect.DataSource.ThetaData.Tests.csproj
index 390fd94..6f9aa42 100644
--- a/QuantConnect.ThetaData.Tests/QuantConnect.DataSource.ThetaData.Tests.csproj
+++ b/QuantConnect.ThetaData.Tests/QuantConnect.DataSource.ThetaData.Tests.csproj
@@ -2,7 +2,7 @@
 	<PropertyGroup>
 		<Configuration Condition=" '$(Configuration)' == '' ">Release</Configuration>
 		<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net9.0</TargetFramework>
 		<IsPackable>false</IsPackable>
 		<TestProjectType>UnitTest</TestProjectType>
 		<OutputPath>bin\$(Configuration)\</OutputPath>
@@ -15,13 +15,15 @@
 
 	<ItemGroup>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
-		<PackageReference Include="NUnit" Version="3.13.3" />
-		<PackageReference Include="NUnit3TestAdapter" Version="4.4.2">
+		<PackageReference Include="NUnit" Version="4.2.2" />
+		<PackageReference Include="NUnit3TestAdapter" Version="4.6.0">
 			<PrivateAssets>all</PrivateAssets>
-			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>
 		<PackageReference Include="NUnit.Analyzers" Version="3.6.1" />
 	</ItemGroup>
+	<ItemGroup>
+		<Using Include="NUnit.Framework.Legacy.ClassicAssert" Alias="Assert" />
+	</ItemGroup>
 
 	<ItemGroup>
 		<ProjectReference Include="..\..\Lean\Tests\QuantConnect.Tests.csproj" />
diff --git a/QuantConnect.ThetaData/QuantConnect.DataSource.ThetaData.csproj b/QuantConnect.ThetaData/QuantConnect.DataSource.ThetaData.csproj
index 7d83ecd..ff6f1d3 100644
--- a/QuantConnect.ThetaData/QuantConnect.DataSource.ThetaData.csproj
+++ b/QuantConnect.ThetaData/QuantConnect.DataSource.ThetaData.csproj
@@ -2,7 +2,7 @@
 	<PropertyGroup>
 		<Configuration Condition=" '$(Configuration)' == '' ">Release</Configuration>
 		<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-		<TargetFramework>net6.0</TargetFramework>
+		<TargetFramework>net9.0</TargetFramework>
 		<Product>QuantConnect.Lean.DataSource.ThetaData</Product>
 		<AssemblyName>QuantConnect.Lean.DataSource.ThetaData</AssemblyName>
 		<RootNamespace>QuantConnect.Lean.DataSource.ThetaData</RootNamespace>