diff --git a/src/ReactiveUI.Fody.Analyzer.Test/ReactiveUI.Fody.Analyzer.Test.csproj b/src/ReactiveUI.Fody.Analyzer.Test/ReactiveUI.Fody.Analyzer.Test.csproj
index f77b6ba0bb..f88ddab805 100644
--- a/src/ReactiveUI.Fody.Analyzer.Test/ReactiveUI.Fody.Analyzer.Test.csproj
+++ b/src/ReactiveUI.Fody.Analyzer.Test/ReactiveUI.Fody.Analyzer.Test.csproj
@@ -4,7 +4,7 @@
     </PropertyGroup>
     <ItemGroup>
         <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="2.9.8" />
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.3.1" />
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.4.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
         <PackageReference Include="xunit" Version="2.4.1" />
     </ItemGroup>
diff --git a/src/ReactiveUI.Fody.Analyzer/ReactiveUI.Fody.Analyzer.csproj b/src/ReactiveUI.Fody.Analyzer/ReactiveUI.Fody.Analyzer.csproj
index 2450d464d0..eab3c553b9 100644
--- a/src/ReactiveUI.Fody.Analyzer/ReactiveUI.Fody.Analyzer.csproj
+++ b/src/ReactiveUI.Fody.Analyzer/ReactiveUI.Fody.Analyzer.csproj
@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="2.9.8" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.3.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.4.0" PrivateAssets="all" />
     <PackageReference Include="System.Collections.Immutable" Version="1.7.0" />
   </ItemGroup>