diff --git a/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py b/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py
index 999a43f47164ba10e6b6ba076205d65b531ec700..4e416bd883063d8a48997306fb9fed41b72053cd 100755
--- a/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py
+++ b/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py
@@ -44,7 +44,7 @@ resolutions = {
 
 ############ GRID #######################
 # mesh_resolution = 20
-timestep_size = 0.01
+timestep_size = 0.005
 number_of_timesteps = 100
 plot_timestep_every = 1
 # decide how many timesteps you want analysed. Analysed means, that we write out