diff --git a/backend/requirements.txt b/backend/requirements.txt
index 8e42bee59..a937a1c58 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -82,7 +82,7 @@ sentencepiece
 soundfile==0.13.1
 azure-ai-documentintelligence==1.0.2
 
-pillow==11.1.0
+pillow==11.2.1
 opencv-python-headless==4.11.0.86
 rapidocr-onnxruntime==1.4.4
 rank-bm25==0.2.2