diff --git a/requirements.txt b/requirements.txt
index d35b983..39244ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ click==6.7
 cycler==0.10.0
 deap==1.0.2.post2
 decorator==4.0.11
-Flask==0.12.2
+Flask==2.1.3
 functools32==3.2.3-2
 #graphviz==0.7.1
 greenlet==0.4.12