diff --git a/src/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests.csproj b/src/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests.csproj
index aad17534..6c191325 100644
--- a/src/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests.csproj
+++ b/src/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests/NServiceBus.Persistence.CosmosDB.TransactionalSession.AcceptanceTests.csproj
@@ -16,7 +16,7 @@
     <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3" />
     <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.35.4" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="NServiceBus.AcceptanceTesting" Version="9.0.0-alpha.4" />
+    <PackageReference Include="NServiceBus.AcceptanceTesting" Version="9.0.0-alpha.9" />
     <PackageReference Include="NServiceBus.TransactionalSession" Version="3.0.0-alpha.1" />
     <PackageReference Include="Nunit" Version="3.14.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />