diff --git a/poetry.lock b/poetry.lock
index fad0c56..0d450d2 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
 
 [[package]]
 name = "alabaster"
@@ -200,7 +200,7 @@ description = "Backport of PEP 654 (exception groups)"
 optional = false
 python-versions = ">=3.7"
 groups = ["dev"]
-markers = "python_version < \"3.11\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "exceptiongroup-1.2.2-py3-none-any.whl", hash = "sha256:3111b9d131c238bec2f8f516e123e14ba243563fb135d3fe885990585aa7795b"},
     {file = "exceptiongroup-1.2.2.tar.gz", hash = "sha256:47c2edf7c6738fafb49fd34290706d1a1a2f4d1c6df275526b62cbb4aa5393cc"},
@@ -211,22 +211,23 @@ test = ["pytest (>=6)"]
 
 [[package]]
 name = "flask"
-version = "2.3.3"
+version = "3.1.3"
 description = "A simple framework for building complex web applications."
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.9"
 groups = ["main"]
 files = [
-    {file = "flask-2.3.3-py3-none-any.whl", hash = "sha256:f69fcd559dc907ed196ab9df0e48471709175e696d6e698dd4dbe940f96ce66b"},
-    {file = "flask-2.3.3.tar.gz", hash = "sha256:09c347a92aa7ff4a8e7f3206795f30d826654baf38b873d0744cd571ca609efc"},
+    {file = "flask-3.1.3-py3-none-any.whl", hash = "sha256:f4bcbefc124291925f1a26446da31a5178f9483862233b23c0c96a20701f670c"},
+    {file = "flask-3.1.3.tar.gz", hash = "sha256:0ef0e52b8a9cd932855379197dd8f94047b359ca0a78695144304cb45f87c9eb"},
 ]
 
 [package.dependencies]
-blinker = ">=1.6.2"
+blinker = ">=1.9.0"
 click = ">=8.1.3"
-itsdangerous = ">=2.1.2"
-Jinja2 = ">=3.1.2"
-Werkzeug = ">=2.3.7"
+itsdangerous = ">=2.2.0"
+jinja2 = ">=3.1.2"
+markupsafe = ">=2.1.1"
+werkzeug = ">=3.1.0"
 
 [package.extras]
 async = ["asgiref (>=3.2)"]
@@ -1147,7 +1148,7 @@ description = "A lil' TOML parser"
 optional = false
 python-versions = ">=3.8"
 groups = ["dev"]
-markers = "python_version < \"3.11\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "tomli-2.2.1-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:678e4fa69e4575eb77d103de3df8a895e1591b48e740211bd1067378c69e8249"},
     {file = "tomli-2.2.1-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:023aa114dd824ade0100497eb2318602af309e5a55595f76b626d6d9f3b7b0a6"},
@@ -1234,4 +1235,4 @@ watchdog = ["watchdog (>=2.3)"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.10"
-content-hash = "0c31faa9a5e619c07d5734a60929ecc68210a3962e63a635338d8ad9df68c76d"
+content-hash = "7f329908ac771aae39504b60c1e6b496f579a945e9e053fbf296331addbd73ee"
diff --git a/pyproject.toml b/pyproject.toml
index 0e1194f..433377d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ readme = "README.md"
 python = "^3.10"
 pandas = "^2.0.1"
 pyyaml = "^6.0"
-flask = "^2.3.2"
+flask = ">=2.3.2,<4.0.0"
 lxml = "^5.2.2"
 numpy = "2.1.0"