diff --git a/src/OnPremise/WebSite/Global.asax.cs b/src/OnPremise/WebSite/Global.asax.cs
index beeb6b76..252ef272 100644
--- a/src/OnPremise/WebSite/Global.asax.cs
+++ b/src/OnPremise/WebSite/Global.asax.cs
@@ -46,7 +46,7 @@ protected void Application_Start()
 
         private void SetupCompositionContainer()
         {
-            Container.Current = new CompositionContainer(new RepositoryExportProvider());
+            Container.Current = new CompositionContainer(CompositionOptions.IsThreadSafe, new RepositoryExportProvider());
         }
     }
 }
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