diff --git a/nlp/requirements-serve.txt b/nlp/requirements-serve.txt
index 8708aa8..169593b 100644
--- a/nlp/requirements-serve.txt
+++ b/nlp/requirements-serve.txt
@@ -2,7 +2,7 @@ captum==0.3.1
 numpy==1.21.5
 pandas==1.3.5
 seaborn==0.11.0
-flask==2.0.1
+flask==2.3.2
 gunicorn==20.1.0
 --find-links https://download.pytorch.org/whl/torch_stable.html
 torch==1.8.1+cu101