diff --git a/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal38/ReactiveMarbles.ObservableEvents.SourceGenerator38.csproj b/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal38/ReactiveMarbles.ObservableEvents.SourceGenerator38.csproj
index d2a8409..3302cd0 100644
--- a/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal38/ReactiveMarbles.ObservableEvents.SourceGenerator38.csproj
+++ b/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal38/ReactiveMarbles.ObservableEvents.SourceGenerator38.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.8.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.8.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal40/ReactiveMarbles.ObservableEvents.SourceGenerator40.csproj b/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal40/ReactiveMarbles.ObservableEvents.SourceGenerator40.csproj
index c20b2dd..fb11b46 100644
--- a/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal40/ReactiveMarbles.ObservableEvents.SourceGenerator40.csproj
+++ b/src/ReactiveMarbles.ObservableEvents.SourceGeneratorInternal40/ReactiveMarbles.ObservableEvents.SourceGenerator40.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.8.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/ReactiveMarbles.ObservableEvents.Tests38/ReactiveMarbles.ObservableEvents.Tests38.csproj b/src/ReactiveMarbles.ObservableEvents.Tests38/ReactiveMarbles.ObservableEvents.Tests38.csproj
index 4fdf781..06a301c 100644
--- a/src/ReactiveMarbles.ObservableEvents.Tests38/ReactiveMarbles.ObservableEvents.Tests38.csproj
+++ b/src/ReactiveMarbles.ObservableEvents.Tests38/ReactiveMarbles.ObservableEvents.Tests38.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.8.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.8.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
   </ItemGroup>
 
diff --git a/src/ReactiveMarbles.ObservableEvents.Tests40/ReactiveMarbles.ObservableEvents.Tests40.csproj b/src/ReactiveMarbles.ObservableEvents.Tests40/ReactiveMarbles.ObservableEvents.Tests40.csproj
index 5b6edf6..2fc685f 100644
--- a/src/ReactiveMarbles.ObservableEvents.Tests40/ReactiveMarbles.ObservableEvents.Tests40.csproj
+++ b/src/ReactiveMarbles.ObservableEvents.Tests40/ReactiveMarbles.ObservableEvents.Tests40.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.0.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.8.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
   </ItemGroup>