diff --git a/poetry.lock b/poetry.lock
index dd1b991..49dc105 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -41,7 +41,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
 name = "flask"
-version = "2.1.1"
+version = "2.1.2"
 description = "A simple framework for building complex web applications."
 category = "main"
 optional = false
@@ -205,7 +205,7 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "46bb8f310e761e1d15baf782c4eef7aed70bf62c1336ae01880a65a92c9736c5"
+content-hash = "890f888507e7e9db0131daea27b752d12b20873429885ac0c7bc355c15b2499e"
 
 [metadata.files]
 atomicwrites = [
@@ -225,8 +225,8 @@ colorama = [
     {file = "colorama-0.4.4.tar.gz", hash = "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b"},
 ]
 flask = [
-    {file = "Flask-2.1.1-py3-none-any.whl", hash = "sha256:8a4cf32d904cf5621db9f0c9fbcd7efabf3003f22a04e4d0ce790c7137ec5264"},
-    {file = "Flask-2.1.1.tar.gz", hash = "sha256:a8c9bd3e558ec99646d177a9739c41df1ded0629480b4c8d2975412f3c9519c8"},
+    {file = "Flask-2.1.2-py3-none-any.whl", hash = "sha256:fad5b446feb0d6db6aec0c3184d16a8c1f6c3e464b511649c8918a9be100b4fe"},
+    {file = "Flask-2.1.2.tar.gz", hash = "sha256:315ded2ddf8a6281567edb27393010fe3406188bafbfe65a3339d5787d89e477"},
 ]
 importlib-metadata = [
     {file = "importlib_metadata-4.11.3-py3-none-any.whl", hash = "sha256:1208431ca90a8cca1a6b8af391bb53c1a2db74e5d1cef6ddced95d4b2062edc6"},
diff --git a/pyproject.toml b/pyproject.toml
index 7745626..6aa61e0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ authors = ["comfuture <comfuture@gmail.com>"]
 
 [tool.poetry.dependencies]
 python = "^3.8"
-Flask = "^2.1.1"
+Flask = "^2.1.2"
 pytest = "^7.1.2"
 
 [tool.poetry.dev-dependencies]