diff --git a/tests/ZB.MOM.WW.ScadaBridge.Transport.IntegrationTests/Import/BundleImporterApplyTests.cs b/tests/ZB.MOM.WW.ScadaBridge.Transport.IntegrationTests/Import/BundleImporterApplyTests.cs
index 2c8c0db2..0ec73ed9 100644
--- a/tests/ZB.MOM.WW.ScadaBridge.Transport.IntegrationTests/Import/BundleImporterApplyTests.cs
+++ b/tests/ZB.MOM.WW.ScadaBridge.Transport.IntegrationTests/Import/BundleImporterApplyTests.cs
@@ -69,6 +69,12 @@ public sealed class BundleImporterApplyTests : IDisposable
         // site/data-connection/instance closure; register it or activation fails.
         services.AddScoped<ISiteRepository, SiteRepository>();
         services.AddScoped<IDeploymentManagerRepository, DeploymentManagerRepository>();
+        // M9-T32: FlatteningPipeline gained an ISharedSchemaRepository constructor
+        // dependency for schema-library $ref resolution; register the real repo so
+        // AddDeploymentManager()'s IFlatteningPipeline → FlatteningPipeline activates.
+        // SharedSchemaRepository only needs ScadaBridgeDbContext, which is already
+        // registered above as the in-memory provider.
+        services.AddScoped<ISharedSchemaRepository, SharedSchemaRepository>();
         services.AddScoped<IAuditCorrelationContext, AuditCorrelationContext>();
         services.AddScoped<IAuditService, AuditService>();
         services.AddTransport();