diff --git a/requirements.txt b/requirements.txt
index e0ab7a8..55e7f3a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -238,7 +238,7 @@ scikit-learn==1.5.2
 scipy==1.14.1
 seaborn==0.12.2
 sentence-transformers==3.2.1
-sentencepiece==0.2.0
+sentencepiece==0.2.1
 sentry-sdk==2.17.0
 seqeval==1.2.2
 setproctitle==1.3.3