diff --git a/requirements.txt b/requirements.txt
index 50bf149..62dce0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-flask==1.1.1
+flask==2.1.0
 pyroute2==0.5.6
 docker==4.0.2
 eventfd==0.2