diff --git a/shape_optimization/use_cases/10_Multi_Constraint_Optimization_3D_Hook/optimization_parameters.json b/shape_optimization/use_cases/10_Multi_Constraint_Optimization_3D_Hook/optimization_parameters.json
index 49b6f992..89793059 100644
--- a/shape_optimization/use_cases/10_Multi_Constraint_Optimization_3D_Hook/optimization_parameters.json
+++ b/shape_optimization/use_cases/10_Multi_Constraint_Optimization_3D_Hook/optimization_parameters.json
@@ -45,9 +45,6 @@
                         "time_step"       : 1.0
                     },
                     "domain_size"     : 3,
-                    "linear_solver_settings"  : {
-                        "solver_type"         : "LinearSolversApplication.pardiso_llt"
-                    },
                     "compute_reactions"     : false
                 }
             }