diff --git a/setup.py b/setup.py
index 9b13056..987d3c2 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
                     "hapiplot",
                     "isodate",
                     "markupsafe==2.0.1",
-                    "Flask==1.1.4",
+                    "Flask==2.3.2",
                     "gunicorn==19.9.0",
                     "requests==2.27.1",
                     "python-slugify",