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>