diff --git a/requirements.txt b/requirements.txt
index b89f172..bd4c60d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Flask==1.1.1
+Flask==2.3.2
 PyQt5==5.13.0
 PyQtWebEngine==5.13.0
 matplotlib==3.0.3