diff --git a/ds_config_zero3.json b/ds_config_zero3.json
index defa626..07b2d36 100644
--- a/ds_config_zero3.json
+++ b/ds_config_zero3.json
@@ -14,8 +14,7 @@
     "offload_optimizer": { "device": "none" },
     "offload_param":     { "device": "none" },
 
-    "stage3_gather_16bit_weights_on_model_save": false,
-    "zero_allow_untested_optimizer": true
+    "stage3_gather_16bit_weights_on_model_save": false
   },
 
   "bf16": { "enabled": true },