diff --git a/src/FsOboParser/FsOboParser.fsproj b/src/FsOboParser/FsOboParser.fsproj
index b30d09b..a194a01 100644
--- a/src/FsOboParser/FsOboParser.fsproj
+++ b/src/FsOboParser/FsOboParser.fsproj
@@ -39,6 +39,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="[1.1.1]" PrivateAssets="All" />
     <PackageReference Include="ISADotNet" Version="[0.6.1]" />
+    <PackageReference Include="FSharpAux" Version="[2.0.0]" />
   </ItemGroup>
 
 </Project>