diff --git a/config/ppo/Sorter_curriculum.yaml b/config/ppo/Sorter_curriculum.yaml
index e48ef146af..cc29e66180 100644
--- a/config/ppo/Sorter_curriculum.yaml
+++ b/config/ppo/Sorter_curriculum.yaml
@@ -101,5 +101,3 @@ environment_parameters:
         value: 18.0
       - name: Lesson9
         value: 20.0
-env_settings:
-  num_envs: 8