Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/ExceedanceProbabilityCalculationParser.cs
===================================================================
diff -u -rce871f8d394d4539208c9ef68372dd9d64ae1941 -r84e9dd40942da514fb2f2cb270001e81857b1be4
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/ExceedanceProbabilityCalculationParser.cs	(.../ExceedanceProbabilityCalculationParser.cs)	(revision ce871f8d394d4539208c9ef68372dd9d64ae1941)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Parsers/ExceedanceProbabilityCalculationParser.cs	(.../ExceedanceProbabilityCalculationParser.cs)	(revision 84e9dd40942da514fb2f2cb270001e81857b1be4)
@@ -79,19 +79,20 @@
 
         private static ExceedanceProbabilityCalculationOutput DoParse(string outputFilePath, int sectionId)
         {
-            var sqLiteConnection = CreateConnection(outputFilePath);
-            sqLiteConnection.Open();
+            using (var sqLiteConnection = CreateConnection(outputFilePath))
+            {
+                sqLiteConnection.Open();
 
-            int betaId;
-            var exceedanceProbabilityCalculationOutput = ReadExceedanceProbabilityCalculationOutput(sectionId, sqLiteConnection, out betaId);
+                int betaId;
+                var exceedanceProbabilityCalculationOutput = ReadExceedanceProbabilityCalculationOutput(sectionId, sqLiteConnection, out betaId);
 
-            foreach (var alpha in ReadExceedanceProbabilityCalculationAlphaOutput(sectionId, betaId, sqLiteConnection))
-            {
-                exceedanceProbabilityCalculationOutput.Alphas.Add(alpha);
-            }
+                foreach (var alpha in ReadExceedanceProbabilityCalculationAlphaOutput(sectionId, betaId, sqLiteConnection))
+                {
+                    exceedanceProbabilityCalculationOutput.Alphas.Add(alpha);
+                }
 
-            sqLiteConnection.Close();
-            return exceedanceProbabilityCalculationOutput;
+                return exceedanceProbabilityCalculationOutput;
+            }
         }
 
         private static SQLiteDataReader CreateDataReader(SQLiteConnection connection, string queryString, params SQLiteParameter[] parameters)