diff --git a/requirements.txt b/requirements.txt
index c365ca9..0f80110 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Flask==1.0.2
+Flask==2.3.2
 matplotlib==2.2.3
 numpy==1.15.1
 Pillow==6.2.0