diff --git a/poetry.lock b/poetry.lock
index 2be3d45..5aa6b67 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1909,27 +1909,27 @@ files = [
 
 [[package]]
 name = "sphinx"
-version = "5.3.0"
+version = "6.1.3"
 description = "Python documentation generator"
 category = "main"
 optional = true
-python-versions = ">=3.6"
+python-versions = ">=3.8"
 files = [
-    {file = "Sphinx-5.3.0.tar.gz", hash = "sha256:51026de0a9ff9fc13c05d74913ad66047e104f56a129ff73e174eb5c3ee794b5"},
-    {file = "sphinx-5.3.0-py3-none-any.whl", hash = "sha256:060ca5c9f7ba57a08a1219e547b269fadf125ae25b06b9fa7f66768efb652d6d"},
+    {file = "Sphinx-6.1.3.tar.gz", hash = "sha256:0dac3b698538ffef41716cf97ba26c1c7788dba73ce6f150c1ff5b4720786dd2"},
+    {file = "sphinx-6.1.3-py3-none-any.whl", hash = "sha256:807d1cb3d6be87eb78a381c3e70ebd8d346b9a25f3753e9947e866b2786865fc"},
 ]
 
 [package.dependencies]
 alabaster = ">=0.7,<0.8"
 babel = ">=2.9"
 colorama = {version = ">=0.4.5", markers = "sys_platform == \"win32\""}
-docutils = ">=0.14,<0.20"
+docutils = ">=0.18,<0.20"
 imagesize = ">=1.3"
 importlib-metadata = {version = ">=4.8", markers = "python_version < \"3.10\""}
 Jinja2 = ">=3.0"
 packaging = ">=21.0"
-Pygments = ">=2.12"
-requests = ">=2.5.0"
+Pygments = ">=2.13"
+requests = ">=2.25.0"
 snowballstemmer = ">=2.0"
 sphinxcontrib-applehelp = "*"
 sphinxcontrib-devhelp = "*"
@@ -1940,8 +1940,8 @@ sphinxcontrib-serializinghtml = ">=1.1.5"
 
 [package.extras]
 docs = ["sphinxcontrib-websupport"]
-lint = ["docutils-stubs", "flake8 (>=3.5.0)", "flake8-bugbear", "flake8-comprehensions", "flake8-simplify", "isort", "mypy (>=0.981)", "sphinx-lint", "types-requests", "types-typed-ast"]
-test = ["cython", "html5lib", "pytest (>=4.6)", "typed_ast"]
+lint = ["docutils-stubs", "flake8 (>=3.5.0)", "flake8-simplify", "isort", "mypy (>=0.990)", "ruff", "sphinx-lint", "types-requests"]
+test = ["cython", "html5lib", "pytest (>=4.6)"]
 
 [[package]]
 name = "sphinx-autodoc-typehints"
@@ -2311,4 +2311,4 @@ docs = ["sphinx", "sphinx-autodoc-typehints", "sphinx-rtd-theme", "m2r2", "tomlk
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8"
-content-hash = "837858bb3a5b86ef49df6bac36fe86e7618628fc4b9f98f65c7278cff3704457"
+content-hash = "f194205e4bfa9d9ae037867dc2042851c53a960a30179b2579fe40a96c40bc5f"
diff --git a/pyproject.toml b/pyproject.toml
index 477988e..962c36c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,7 @@ python = "^3.8"
 django = ">=3.2, <4.2"
 
 # Docs extra:
-sphinx = { version = "^5.0", optional = true }
+sphinx = { version = ">=5,<7", optional = true }
 sphinx-autodoc-typehints = { version = "^1.12", optional = true }
 m2r2 = { version = "^0.3", optional = true }
 tomlkit = { version = "^0.11", optional = true }