diff --git a/Fitter.py b/Fitter.py
index 25d0e1c..c097010 100644
--- a/Fitter.py
+++ b/Fitter.py
@@ -103,7 +103,7 @@ class Fitter:
         error_weights = (0, 2, 2, 2, 1, 1, 1, 1, 0)
         fmin = minimize(fun=self.cost_function_all,
                         args=(error_weights,), x0=x0, method="Nelder-Mead",
-                        options={"initial_simplex": initial_simplex, "xatol": 0.001, "maxfev": 200, "maxiter": 400})
+                        options={"initial_simplex": initial_simplex, "xatol": 0.001, "maxfev": 600, "maxiter": 1200})
 
         return fmin, self.base_model.get_parameters()