diff --git a/requirements.txt b/requirements.txt
index 6aef25b..f95421a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ arxiv2bib==1.0.8
 black==21.7b0
 citeproc-py==0.5.1
 citeproc-py-styles==0.1.2
-Flask==2.0.1
+Flask==2.3.2
 Flask-DebugToolbar==0.11.0
 google==3.0.0
 gunicorn==20.1.0