diff --git a/code/config/numerics.config b/code/config/numerics.config
index 147cabd27..592dbe406 100644
--- a/code/config/numerics.config
+++ b/code/config/numerics.config
@@ -51,8 +51,7 @@ discrepancyPower_RGC      5.0
 fixed_seed                0           # put any number larger than zero, integer, if you want to have a pseudo random distribution
 
 ## spectral parameters ##
-err_div_tol               1.0e-2      # 1.0e-4 proposed by Suquet, less strict criteria are usefull
-err_defgrad_tol           1.0e-3      # relative tolerance for fullfillment of average deformation gradient (is usually passively fullfilled)
+err_div_tol               1.0e-4      # 1.0e-4 proposed by Suquet
 err_stress_tolrel         0.01        # relative tolerance for fullfillment of stress BC
-itmax                     40          # Maximum iteration number
+itmax                     20          # Maximum iteration number
 memory_efficient          1           # Precalculate Gamma-operator (81 double per point)