diff --git a/poetry.lock b/poetry.lock
index 0cc455e..7aff5d2 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -819,7 +819,7 @@ python-versions = "*"
 
 [[package]]
 name = "pyupgrade"
-version = "2.30.1"
+version = "2.31.0"
 description = "A tool to automatically upgrade syntax for newer versions."
 category = "dev"
 optional = false
@@ -1264,7 +1264,7 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "007017d07ea45fb47db100fae53ff6f26c02e19c3acbd94d26355876bf65e673"
+content-hash = "21cae3efb7ad855eadec8b667e3a03c180ddb4eb07496e3594faa6f768634eb0"
 
 [metadata.files]
 alabaster = [
@@ -1708,8 +1708,8 @@ pytz = [
     {file = "pytz-2021.3.tar.gz", hash = "sha256:acad2d8b20a1af07d4e4c9d2e9285c5ed9104354062f275f3fcd88dcef4f1326"},
 ]
 pyupgrade = [
-    {file = "pyupgrade-2.30.1-py2.py3-none-any.whl", hash = "sha256:803c4e7631f0596e5d991b671014ce8f4f1e76b52b27dca11ea8bf0110808dfa"},
-    {file = "pyupgrade-2.30.1.tar.gz", hash = "sha256:dc38f1613c50fd7baae3475f2afa5b8c933709df619494dd98773e91a5a2755e"},
+    {file = "pyupgrade-2.31.0-py2.py3-none-any.whl", hash = "sha256:0a62c5055f854d7f36e155b7ee8920561bf0399c53edd975cf02436eef8937fc"},
+    {file = "pyupgrade-2.31.0.tar.gz", hash = "sha256:80e2308cae2b11c3fdd091137495d99abf7e0cd98b501aa5758974991497c24c"},
 ]
 pyyaml = [
     {file = "PyYAML-6.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:d4db7c7aef085872ef65a8fd7d6d09a14ae91f691dec3e87ee5ee0539d516f53"},
diff --git a/pyproject.toml b/pyproject.toml
index 110b520..4a741da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ reorder-python-imports = "^2.6.0"
 pre-commit-hooks = "^4.0.1"
 sphinx-click = "^3.0.2"
 Pygments = "^2.11.0"
-pyupgrade = "^2.30.0"
+pyupgrade = "^2.31.0"
 furo = ">=2021.11.12"
 pytest-cov = "^3.0.0"
 types-croniter = "^1.0.3"