diff --git a/src/NServiceBus.TransactionalSession/NServiceBus.TransactionalSession.csproj b/src/NServiceBus.TransactionalSession/NServiceBus.TransactionalSession.csproj
index d79d990..7dd0c34 100644
--- a/src/NServiceBus.TransactionalSession/NServiceBus.TransactionalSession.csproj
+++ b/src/NServiceBus.TransactionalSession/NServiceBus.TransactionalSession.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="NServiceBus" Version="9.0.0-alpha.9" />
-    <PackageReference Include="Particular.Packaging" Version="3.0.0" />
+    <PackageReference Include="Particular.Packaging" Version="4.0.0" />
   </ItemGroup>
 
   <ItemGroup>