diff --git a/fava/requirements.txt b/fava/requirements.txt
index a6520c4..cf2e286 100644
--- a/fava/requirements.txt
+++ b/fava/requirements.txt
@@ -8,7 +8,7 @@ certifi==2022.12.7
 chardet==4.0.0
 charset-normalizer==2.0.12
 click==8.1.3
-Flask==2.1.2
+Flask==2.3.2
 Flask-Babel==2.0.0
 google-api-core==2.7.3
 google-api-python-client==2.47.0