diff --git a/Directory.Build.props b/Directory.Build.props
index 118cccfcf2..00723b1b8d 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -20,7 +20,7 @@
     <NewtonsoftJsonVersion>12.0.3</NewtonsoftJsonVersion>
     <PocketLoggerVersion>0.3.0</PocketLoggerVersion>
     <SystemDiagnosticsProcessVersion>4.3.0</SystemDiagnosticsProcessVersion>
-    <SystemReactiveVersion>4.1.6</SystemReactiveVersion>
+    <SystemReactiveVersion>4.3.2</SystemReactiveVersion>
     <SystemRuntimeExtensionsVersion>4.3.0</SystemRuntimeExtensionsVersion>
     <MicrosoftCodeAnalysisCommonVersion>3.5.0-beta1-final</MicrosoftCodeAnalysisCommonVersion>
     <MicrosoftCodeAnalysisWorkspacesCommonVersion>3.5.0-beta1-final</MicrosoftCodeAnalysisWorkspacesCommonVersion>
diff --git a/Microsoft.DotNet.Interactive.Formatting.Tests/Microsoft.DotNet.Interactive.Formatting.Tests.csproj b/Microsoft.DotNet.Interactive.Formatting.Tests/Microsoft.DotNet.Interactive.Formatting.Tests.csproj
index 5151bf9b50..a75070b3ff 100644
--- a/Microsoft.DotNet.Interactive.Formatting.Tests/Microsoft.DotNet.Interactive.Formatting.Tests.csproj
+++ b/Microsoft.DotNet.Interactive.Formatting.Tests/Microsoft.DotNet.Interactive.Formatting.Tests.csproj
@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="5.9.0" />
+    <PackageReference Include="FluentAssertions" Version="5.10.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Microsoft.DotNet.Interactive.Jupyter.Tests/Microsoft.DotNet.Interactive.Jupyter.Tests.csproj b/Microsoft.DotNet.Interactive.Jupyter.Tests/Microsoft.DotNet.Interactive.Jupyter.Tests.csproj
index 2aaf07ad08..f06da2b0e7 100644
--- a/Microsoft.DotNet.Interactive.Jupyter.Tests/Microsoft.DotNet.Interactive.Jupyter.Tests.csproj
+++ b/Microsoft.DotNet.Interactive.Jupyter.Tests/Microsoft.DotNet.Interactive.Jupyter.Tests.csproj
@@ -14,9 +14,9 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Assent" Version="1.3.1" />
-    <PackageReference Include="FluentAssertions" Version="5.9.0" />
+    <PackageReference Include="FluentAssertions" Version="5.10.0" />
     <PackageReference Include="HtmlAgilityPack" Version="1.11.17" />
-    <PackageReference Include="Microsoft.Reactive.Testing" Version="4.1.6" />
+    <PackageReference Include="Microsoft.Reactive.Testing" Version="4.3.2" />
     <PackageReference Include="JsonSerializationExtensions" Version="0.1.8580001">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
@@ -35,7 +35,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="System.Reactive" Version="4.1.6" />
+    <PackageReference Include="System.Reactive" Version="4.3.2" />
     <PackageReference Include="TaskExtensions" Version="0.1.8580001">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
diff --git a/Microsoft.DotNet.Interactive.Jupyter/Microsoft.DotNet.Interactive.Jupyter.csproj b/Microsoft.DotNet.Interactive.Jupyter/Microsoft.DotNet.Interactive.Jupyter.csproj
index 784bf441f5..5b88ddbd87 100644
--- a/Microsoft.DotNet.Interactive.Jupyter/Microsoft.DotNet.Interactive.Jupyter.csproj
+++ b/Microsoft.DotNet.Interactive.Jupyter/Microsoft.DotNet.Interactive.Jupyter.csproj
@@ -20,7 +20,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="4.5.1" />
-    <PackageReference Include="System.Reactive" Version="4.1.6" />
+    <PackageReference Include="System.Reactive" Version="4.3.2" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Microsoft.DotNet.Interactive.CSharp\Microsoft.DotNet.Interactive.CSharp.csproj" />
diff --git a/Microsoft.DotNet.Interactive.Telemetry.Tests/Microsoft.DotNet.Interactive.Telemetry.Tests.csproj b/Microsoft.DotNet.Interactive.Telemetry.Tests/Microsoft.DotNet.Interactive.Telemetry.Tests.csproj
index 2135573101..d16eb8cb67 100644
--- a/Microsoft.DotNet.Interactive.Telemetry.Tests/Microsoft.DotNet.Interactive.Telemetry.Tests.csproj
+++ b/Microsoft.DotNet.Interactive.Telemetry.Tests/Microsoft.DotNet.Interactive.Telemetry.Tests.csproj
@@ -17,7 +17,7 @@
 
   <ItemGroup>
     <PackageReference Include="Assent" Version="1.3.1" />
-    <PackageReference Include="FluentAssertions" Version="5.9.0" />
+    <PackageReference Include="FluentAssertions" Version="5.10.0" />
     <PackageReference Include="JsonSerializationExtensions" Version="0.1.8580001">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
@@ -36,7 +36,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="System.Reactive" Version="4.1.6" />
+    <PackageReference Include="System.Reactive" Version="4.3.2" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Microsoft.DotNet.Interactive.Tests/Microsoft.DotNet.Interactive.Tests.csproj b/Microsoft.DotNet.Interactive.Tests/Microsoft.DotNet.Interactive.Tests.csproj
index 2446028f56..401f2dbd34 100644
--- a/Microsoft.DotNet.Interactive.Tests/Microsoft.DotNet.Interactive.Tests.csproj
+++ b/Microsoft.DotNet.Interactive.Tests/Microsoft.DotNet.Interactive.Tests.csproj
@@ -23,7 +23,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Serilog.Sinks.RollingFileAlternate" Version="2.0.9" />
-    <PackageReference Include="FluentAssertions" Version="5.9.0" />
+    <PackageReference Include="FluentAssertions" Version="5.10.0" />
     <PackageReference Include="JsonSerializationExtensions" Version="0.1.8580001">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
@@ -42,7 +42,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="System.Reactive" Version="4.1.6" />
+    <PackageReference Include="System.Reactive" Version="4.3.2" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Microsoft.DotNet.Interactive/Microsoft.DotNet.Interactive.csproj b/Microsoft.DotNet.Interactive/Microsoft.DotNet.Interactive.csproj
index 132a34f95c..8c5286f1ed 100644
--- a/Microsoft.DotNet.Interactive/Microsoft.DotNet.Interactive.csproj
+++ b/Microsoft.DotNet.Interactive/Microsoft.DotNet.Interactive.csproj
@@ -13,17 +13,17 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <MicrosoftCodeAnalysisAnalyzersVersion>2.9.4</MicrosoftCodeAnalysisAnalyzersVersion>	
+    <MicrosoftCodeAnalysisAnalyzersVersion>2.9.6</MicrosoftCodeAnalysisAnalyzersVersion>	
     <SystemRuntimeLoaderVersion>4.3.0</SystemRuntimeLoaderVersion>	
-    <SystemReactiveVersion>4.1.6</SystemReactiveVersion>	
+    <SystemReactiveVersion>4.3.2</SystemReactiveVersion>	
     <SystemCommandlineExperimentalVersion>0.3.0-alpha.19602.1</SystemCommandlineExperimentalVersion>	
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="System.Runtime.Loader" Version="$(SystemRuntimeLoaderVersion)" />
     <PackageReference Include="System.Reactive" Version="$(SystemReactiveVersion)" />
-    <PackageReference Include="system.commandline.experimental" Version="0.3.0-alpha.19602.1" />
-        <PackageReference Include="PocketLogger" Version="$(PocketLoggerVersion)">
+    <PackageReference Include="system.commandline.experimental" Version="$(SystemCommandlineExperimentalVersion)" />
+    <PackageReference Include="PocketLogger" Version="$(PocketLoggerVersion)">
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="XPlot.Plotly" Version="3.0.1" />
diff --git a/dotnet-interactive.Tests/dotnet-interactive.Tests.csproj b/dotnet-interactive.Tests/dotnet-interactive.Tests.csproj
index f58b0a61ce..b23b731a61 100644
--- a/dotnet-interactive.Tests/dotnet-interactive.Tests.csproj
+++ b/dotnet-interactive.Tests/dotnet-interactive.Tests.csproj
@@ -21,7 +21,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Assent" Version="1.3.1" />
-    <PackageReference Include="FluentAssertions" Version="5.9.0" />
+    <PackageReference Include="FluentAssertions" Version="5.10.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/dotnet-interactive/dotnet-interactive.csproj b/dotnet-interactive/dotnet-interactive.csproj
index 378ecd8a8d..a57e231933 100644
--- a/dotnet-interactive/dotnet-interactive.csproj
+++ b/dotnet-interactive/dotnet-interactive.csproj
@@ -55,7 +55,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="system.commandline.experimental" Version="0.3.0-alpha.19602.1" />
-    <PackageReference Include="System.Reactive" Version="4.1.6" />
+    <PackageReference Include="System.Reactive" Version="4.3.2" />
     <PackageReference Include="TaskExtensions" Version="0.1.8580001">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>