Index: Application/Ringtoets/test/Application.Ringtoets.Storage.TestUtil/RingtoetsProjectMigrationTestHelper.cs
===================================================================
diff -u -r9ca0f3be4aa0ee4c0052e33ba266fc0ea3b66b4a -reabf1a800431a23b06c8d81dfbf0f46a71bb659b
--- Application/Ringtoets/test/Application.Ringtoets.Storage.TestUtil/RingtoetsProjectMigrationTestHelper.cs	(.../RingtoetsProjectMigrationTestHelper.cs)	(revision 9ca0f3be4aa0ee4c0052e33ba266fc0ea3b66b4a)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.TestUtil/RingtoetsProjectMigrationTestHelper.cs	(.../RingtoetsProjectMigrationTestHelper.cs)	(revision eabf1a800431a23b06c8d81dfbf0f46a71bb659b)
@@ -85,7 +85,7 @@
 
         private static string GetTestProjectFileName(string versionNumber)
         {
-            return string.Format("FullTestProject{0}.rtd", versionNumber);
+            return $"FullTestProject{versionNumber}.rtd";
         }
     }
 }
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