diff --git a/pyproject.toml b/pyproject.toml
index a42441b..24c3fed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ license = "AGPL-3.0-only"
 [tool.poetry.dependencies]
 python = "^3.7.1"
 csv-metadata-quality = {git = "https://github.com/ilri/csv-metadata-quality.git", tag = "v0.5.0"}
-Flask = "^1.1.2"
+Flask = "^2.0.2"
 ansi2html = "^1.6.0"
 gunicorn = "^20.0.4"