diff --git a/poetry.lock b/poetry.lock
index dd66a7c3..badfa2a6 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -686,7 +686,7 @@ testing = ["fields", "hunter", "process-tests", "six", "pytest-xdist", "virtuale
 
 [[package]]
 name = "pyupgrade"
-version = "2.20.0"
+version = "2.21.0"
 description = "A tool to automatically upgrade syntax for newer versions."
 category = "dev"
 optional = false
@@ -902,7 +902,7 @@ multidict = ">=4.0"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "b90bb9150c02f2ce9d0b60fd23ce445c35eed21dcaeac4151369e5bf5d423efe"
+content-hash = "d03cb616098304542f54e11cca7b841c937df0428ba97bd7a0e78aec701669ba"
 
 [metadata.files]
 aiohttp = [
@@ -1309,8 +1309,8 @@ pytest-cov = [
     {file = "pytest_cov-2.12.1-py2.py3-none-any.whl", hash = "sha256:261bb9e47e65bd099c89c3edf92972865210c36813f80ede5277dceb77a4a62a"},
 ]
 pyupgrade = [
-    {file = "pyupgrade-2.20.0-py2.py3-none-any.whl", hash = "sha256:e646016d0e4a0fc171fd0a56177facf0f16dd2a7b30b2a3a08aa4ad9dd90e0d2"},
-    {file = "pyupgrade-2.20.0.tar.gz", hash = "sha256:33848f4656fd8f35bfe073e6f23b0e249f010533ab06b6866d57f812b3e026a2"},
+    {file = "pyupgrade-2.21.0-py2.py3-none-any.whl", hash = "sha256:e06f47fadbea99a7c03c0ec78214413ee0f4165ef3f33185f9c85c318c6430d1"},
+    {file = "pyupgrade-2.21.0.tar.gz", hash = "sha256:833c1aa26ed974d5e5a098c5d204b94a8a75b3d935d7cc781390821c03476d74"},
 ]
 pyyaml = [
     {file = "PyYAML-5.4.1-cp27-cp27m-macosx_10_9_x86_64.whl", hash = "sha256:3b2b1824fe7112845700f815ff6a489360226a5609b96ec2190a45e62a9fc922"},
diff --git a/pyproject.toml b/pyproject.toml
index 28481716..64c05f20 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ pytest = "^6.2.2"
 pytest-asyncio = "^0.15.1"
 pytest-cov = "^2.11.1"
 yamllint = "^1.26.0"
-pyupgrade = "^2.20.0"
+pyupgrade = "^2.21.0"
 flake8-simplify = "^0.14.0"
 vulture = "^2.3"
 flake8-bandit = "^2.1.2"