diff --git a/0_model_customization_recipes/preference_optimization/grpo_rlvr/sagemaker_code/requirements.txt b/0_model_customization_recipes/preference_optimization/grpo_rlvr/sagemaker_code/requirements.txt
index 52ad64a..821ab4d 100644
--- a/0_model_customization_recipes/preference_optimization/grpo_rlvr/sagemaker_code/requirements.txt
+++ b/0_model_customization_recipes/preference_optimization/grpo_rlvr/sagemaker_code/requirements.txt
@@ -15,7 +15,7 @@ Pillow
 safetensors>=0.6.2
 sagemaker==2.251.1
 sagemaker-mlflow==0.1.0
-sentencepiece==0.2.0
+sentencepiece==0.2.1
 tokenizers>=0.21.4
 triton
 tensorboard