diff --git a/requirements.txt b/requirements.txt
index 221759e..2fc06da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 numpy==1.16.2
-Flask==1.0.2
+Flask>=2.0.3
 Pillow==6.2.0
 gunicorn==20.0.4