diff --git a/src/Csml/Csml.csproj b/src/Csml/Csml.csproj
index 338a2cb..d2c0955 100644
--- a/src/Csml/Csml.csproj
+++ b/src/Csml/Csml.csproj
@@ -13,7 +13,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.0.0" />
   </ItemGroup>
 
 </Project>