diff --git a/poetry.lock b/poetry.lock
index 381c7ce..b290337 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -865,7 +865,7 @@ python-versions = "*"
 
 [[package]]
 name = "sphinx"
-version = "4.0.3"
+version = "4.1.0"
 description = "Python documentation generator"
 category = "dev"
 optional = false
@@ -1124,7 +1124,7 @@ test = ["pytest", "pytest-cov"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "614e5ac55d332c9f9be6eee78c7715a0891e163d4360e5da0e9f908acaa5b361"
+content-hash = "9b893a03f7fd48c89de9083728118bd712a72495220f3c8469468b2877f4990c"
 
 [metadata.files]
 alabaster = [
@@ -1712,8 +1712,8 @@ snowballstemmer = [
     {file = "snowballstemmer-2.0.0.tar.gz", hash = "sha256:df3bac3df4c2c01363f3dd2cfa78cce2840a79b9f1c2d2de9ce8d31683992f52"},
 ]
 sphinx = [
-    {file = "Sphinx-4.0.3-py3-none-any.whl", hash = "sha256:5747f3c855028076fcff1e4df5e75e07c836f0ac11f7df886747231092cfe4ad"},
-    {file = "Sphinx-4.0.3.tar.gz", hash = "sha256:dff357e6a208eb7edb2002714733ac21a9fe597e73609ff417ab8cf0c6b4fbb8"},
+    {file = "Sphinx-4.1.0-py3-none-any.whl", hash = "sha256:51028bb0d3340eb80bcc1a2d614e8308ac78d226e6b796943daf57920abc1aea"},
+    {file = "Sphinx-4.1.0.tar.gz", hash = "sha256:4219f14258ca5612a0c85ed9b7222d54da69724d7e9dd92d1819ad1bf65e1ad2"},
 ]
 sphinx-autobuild = [
     {file = "sphinx-autobuild-2021.3.14.tar.gz", hash = "sha256:de1ca3b66e271d2b5b5140c35034c89e47f263f2cd5db302c9217065f7443f05"},
diff --git a/pyproject.toml b/pyproject.toml
index 14149a6..abd45e8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ reorder-python-imports = "^2.5.0"
 pre-commit = "^2.13.0"
 pygments = "^2.9.0"
 xdoctest = "^0.15.5"
-sphinx = "^4.0.3"
+sphinx = "^4.1.0"
 sphinx-autobuild = "^2021.3.14"
 darglint = "^1.8.0"
 flake8-docstrings = "^1.6.0"