diff --git a/BayesianOptimization/BOwithGym.py b/BayesianOptimization/BOwithGym.py
index 025f142..1aa85ad 100644
--- a/BayesianOptimization/BOwithGym.py
+++ b/BayesianOptimization/BOwithGym.py
@@ -114,7 +114,7 @@ class BayesianOptimization:
                                               self.X,
                                               self.nr_test,
                                               self.nr_policy_weights,
-                                              kappa=2.576,
+                                              kappa=0,
                                               seed=self.policy_seed,
                                               lower=self.lowerb,
                                               upper=self.upperb)
@@ -191,7 +191,7 @@ class BayesianOptimization:
 def main():
     nr_steps = 100
     env = Continuous_MountainCarEnv()   # render_mode='human'
-    bo = BayesianOptimization(env, nr_steps, acq='cb')
+    bo = BayesianOptimization(env, nr_steps, acq='ei')
     bo.initialize()
     iteration_steps = 200
     for i in range(iteration_steps):