diff --git a/src/ImmutableEditableObjectAdapter/ImmutableEditableObjectAdapter.csproj b/src/ImmutableEditableObjectAdapter/ImmutableEditableObjectAdapter.csproj
index da2daaa..9c5b046 100644
--- a/src/ImmutableEditableObjectAdapter/ImmutableEditableObjectAdapter.csproj
+++ b/src/ImmutableEditableObjectAdapter/ImmutableEditableObjectAdapter.csproj
@@ -18,7 +18,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.0.0" />
   </ItemGroup>
 
 </Project>
diff --git a/tests/ImmutableEditableObjectAdapter.Tests/ImmutableEditableObjectAdapter.Tests.csproj b/tests/ImmutableEditableObjectAdapter.Tests/ImmutableEditableObjectAdapter.Tests.csproj
index 9ec2ec2..4921583 100644
--- a/tests/ImmutableEditableObjectAdapter.Tests/ImmutableEditableObjectAdapter.Tests.csproj
+++ b/tests/ImmutableEditableObjectAdapter.Tests/ImmutableEditableObjectAdapter.Tests.csproj
@@ -12,8 +12,8 @@
     <ItemGroup>
         <PackageReference Include="coverlet.collector" Version="6.0.4"/>
         <PackageReference Include="FluentAssertions" Version="8.2.0" />
-        <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="4.14.0" />
-        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />
+        <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="5.0.0" />
+        <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.0.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0"/>
         <PackageReference Include="xunit" Version="2.9.3"/>
         <PackageReference Include="xunit.runner.visualstudio" Version="3.1.0"/>