diff --git a/poetry.lock b/poetry.lock
index 679bb7ed4..d4320f18a 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -648,13 +648,13 @@ flake8 = ">=3.0,<3.2.0 || >3.2.0"
 
 [[package]]
 name = "flake8-simplify"
-version = "0.20.0"
+version = "0.21.0"
 description = "flake8 plugin which checks for code that can be simplified"
 optional = false
 python-versions = ">=3.6.1"
 files = [
-    {file = "flake8_simplify-0.20.0-py3-none-any.whl", hash = "sha256:599a47824726c93fadcf0274e569daed45052e38cd906360d9080eaa3bd76d61"},
-    {file = "flake8_simplify-0.20.0.tar.gz", hash = "sha256:7b8796bbea8aed45f56621c389d0556cc86f0afa5d992581139451240a8fbeca"},
+    {file = "flake8_simplify-0.21.0-py3-none-any.whl", hash = "sha256:439391e762a9370b371208add0b5c5c40c3d25a98e1f5421d263215d08194183"},
+    {file = "flake8_simplify-0.21.0.tar.gz", hash = "sha256:c95ff1dcc1de5949af47e0087cbf1164445881131b15bcd7a71252670f492f4d"},
 ]
 
 [package.dependencies]
@@ -2262,4 +2262,4 @@ ifaddr = ">=0.1.7"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "f00d0a177165661444c2f979fa3fbe04dc38bf6522caeaf8cc856122e0de9ecc"
+content-hash = "0b993a955c2376c182e969d7e054bf22fcfe99051940342151250526fa73cf2a"
diff --git a/pyproject.toml b/pyproject.toml
index 8ed0a726c..a55ea3c98 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ codespell = "^2.2.5"
 flake8 = "^6.1.0"
 flake8-bugbear = "^23.9.16"
 flake8-comprehensions = "^3.14.0"
-flake8-simplify = "^0.20.0"
+flake8-simplify = "^0.21.0"
 flake8-use-fstring = "^1.4"
 homeassistant-stubs = "^2023.2.4"
 isort = "^5.12.0"