Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/ConvergenceParser.cs
===================================================================
diff -u -rc235d644419c9f398fd806f7dce2592f0974ac97 -rcaa069a8d2f118af9b92dc6db8c5c5bdbdc358fd
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/ConvergenceParser.cs	(.../ConvergenceParser.cs)	(revision c235d644419c9f398fd806f7dce2592f0974ac97)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/ConvergenceParser.cs	(.../ConvergenceParser.cs)	(revision caa069a8d2f118af9b92dc6db8c5c5bdbdc358fd)
@@ -37,7 +37,8 @@
             $"SELECT ConvOnBeta OR ConvOnValue AS {convergedColumnName} " +
             "FROM IterateToGivenBetaConvergence " +
             $"WHERE SectionId = {sectionIdParameterName} " +
-            "AND OuterIterationId = (SELECT MAX(OuterIterationId) FROM IterateToGivenBetaConvergence);";
+            "ORDER BY OuterIterationId DESC " +
+            "LIMIT 1";
 
         /// <summary>
         /// Gets the value indicating whether the calculation for a section has converged.