diff --git a/Two-phase-Richards/two-patch/TP-R-two-patch-test-case/TP-R-2-patch-realistic.py b/Two-phase-Richards/two-patch/TP-R-two-patch-test-case/TP-R-2-patch-realistic.py
index 006b47545bb2dda96e7e90fce516348788edc310..5cad90c4e21b5b79b13080d2a58663cb14736af8 100755
--- a/Two-phase-Richards/two-patch/TP-R-two-patch-test-case/TP-R-2-patch-realistic.py
+++ b/Two-phase-Richards/two-patch/TP-R-two-patch-test-case/TP-R-2-patch-realistic.py
@@ -38,7 +38,7 @@ thisfile = "TP-R-2-patch-realistic.py"
 
 # GENERAL SOLVER CONFIG  ######################################################
 # maximal iteration per timestep
-max_iter_num = 5
+max_iter_num = 500
 FEM_Lagrange_degree = 1
 
 # GRID AND MESH STUDY SPECIFICATIONS  #########################################