diff --git a/poetry.lock b/poetry.lock
index 4de7c77..7d6d64c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -4469,14 +4469,14 @@ files = [
 
 [[package]]
 name = "pyupgrade"
-version = "3.20.0"
+version = "3.21.2"
 description = "A tool to automatically upgrade syntax for newer versions."
 optional = false
-python-versions = ">=3.9"
+python-versions = ">=3.10"
 groups = ["dev"]
 files = [
-    {file = "pyupgrade-3.20.0-py2.py3-none-any.whl", hash = "sha256:cd5bf842b863f50adad324a01c30aef60b9f698a9814848094818659c92cd1f4"},
-    {file = "pyupgrade-3.20.0.tar.gz", hash = "sha256:dd6a16c13fc1a7db45796008689a9a35420bd364d681430f640c5e54a3d351ea"},
+    {file = "pyupgrade-3.21.2-py2.py3-none-any.whl", hash = "sha256:2ac7b95cbd176475041e4dfe8ef81298bd4654a244f957167bd68af37d52be9f"},
+    {file = "pyupgrade-3.21.2.tar.gz", hash = "sha256:1a361bea39deda78d1460f65d9dd548d3a36ff8171d2482298539b9dc11c9c06"},
 ]
 
 [package.dependencies]
@@ -6052,4 +6052,4 @@ propcache = ">=0.2.1"
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<3.12"
-content-hash = "b673e225c3b84406a4858751c5dcbee75b74a710c64cf8b9150860e51eda6313"
+content-hash = "e67b6b11cbd9f4d94c667045f55096ce1bd5bca1b26f36e10a3bd548cfb71d61"
diff --git a/pyproject.toml b/pyproject.toml
index 0e1a395..463cf20 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,7 +57,7 @@ black = "26.3.1" # code formatting
 isort = "5.13.2" # import sorting
 ruff = "0.12.5" # linting
 autoflake = "2.3.3" # remove unused imports
-pyupgrade = "3.20.0" # upgrade syntax to newer versions
+pyupgrade = "3.21.2" # upgrade syntax to newer versions
 pre-commit = "4.0.1" # pre-commit hooks
 bandit = "1.7.10" # security linter
 radon = "6.0.1" # code metrics (human)