diff --git a/test/TwoPhaseFlowSimulation/use-case-two-phase-flow-spe10-well.arc b/test/TwoPhaseFlowSimulation/use-case-two-phase-flow-spe10-well.arc
index e6ca23d..072f92d 100644
--- a/test/TwoPhaseFlowSimulation/use-case-two-phase-flow-spe10-well.arc
+++ b/test/TwoPhaseFlowSimulation/use-case-two-phase-flow-spe10-well.arc
@@ -92,7 +92,7 @@
           <verbose>true</verbose>
         </linear-solver-->
          <linear-solver name="PETScSolver">
-	  <solver name="LU" />
+             <solver name="SuperLU" />
           <verbose>low</verbose>
         </linear-solver>
       </newton>
diff --git a/test/TwoPhaseFlowSimulation/use-case-two-phase-flow.arc b/test/TwoPhaseFlowSimulation/use-case-two-phase-flow.arc
index c68bfc0..9a0d031 100755
--- a/test/TwoPhaseFlowSimulation/use-case-two-phase-flow.arc
+++ b/test/TwoPhaseFlowSimulation/use-case-two-phase-flow.arc
@@ -84,17 +84,17 @@
         <tolerance>1.e-8</tolerance>
         <control-factor>0.1</control-factor>
         <debug-dump-matlab>false</debug-dump-matlab>
-        <linear-solver name="HypreSolver">
-          <num-iterations-max>10</num-iterations-max>
-          <stop-criteria-value>1e-8</stop-criteria-value>
+        <!--linear-solver name="HypreSolver">
+          <num-iterations-max>1000</num-iterations-max>
+          <stop-criteria-value>1e-3</stop-criteria-value>
           <solver>BiCGStab</solver>
           <preconditioner>Euclid</preconditioner>
           <verbose>true</verbose>
-        </linear-solver>
-         <!--linear-solver name="PETScSolver">
-             <solver name="LU" />
-          <verbose>low</verbose>
         </linear-solver-->
+         <linear-solver name="PETScSolver">
+             <solver name="SuperLU" />
+          <verbose>low</verbose>
+        </linear-solver>
       </newton>
     </numerics>
     <boundary-condition name="DirichletManager">