diff --git a/requirements.txt b/requirements.txt
index f6e850d..900548c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 aniso8601==1.2.0
-Flask==1.1.1
+Flask==2.3.2
 cryptography==2.1.4
 pyOpenSSL==17.0.0
 PyYAML==5.4