diff --git a/mpc/setup.py b/mpc/setup.py
index aabaa11e9..2a995f633 100644
--- a/mpc/setup.py
+++ b/mpc/setup.py
@@ -27,7 +27,7 @@
         "mypy==0.790",
         "flake8==3.7.8",
         "pylint==2.9",
-        "flask==1.1.1",
+        "flask==2.3.2",
         "cheroot==7.0.0",
         "pycryptodome==3.9.0",
         "ecdsa==0.13.3",