diff --git a/requirements.txt b/requirements.txt
index a1f3e4dc..a52345f6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-flask==1.1.4 
+flask==2.3.2 
 frozen-flask
 flask-script
 latexcodec>=1.0.4