diff --git a/src/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn.csproj b/src/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn.csproj
index 7bd90fadecc..b143da7c95a 100644
--- a/src/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn.csproj
+++ b/src/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn/Microsoft.DocAsCode.Metadata.ManagedReference.Roslyn.csproj
@@ -35,6 +35,7 @@
     <PackageReference Include="System.Collections.Immutable" Version="5.0.0" />
     <PackageReference Include="NuGet.ProjectModel" Version="5.7.0" />
     <PackageReference Include="NuGet.Packaging.Core" Version="5.7.0" />
+    <PackageReference Include="System.Memory" Version="4.5.5" />
     <PackageReference Include="System.Threading.Tasks.Dataflow" Version="4.5.24" />
     <PackageReference Include="Microsoft.VisualStudio.RemoteControl" Version="14.0.262-masterA5CACE98" />
   </ItemGroup>