diff --git a/requirements.txt b/requirements.txt
index a65b814..68db757 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Flask==1.1.1
+Flask==2.3.2
 jupyter==1.0.0
 matplotlib==3.1.2
 numpy==1.17.4