diff --git a/poetry.lock b/poetry.lock
index b9ea7cda..a7a270a9 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1591,22 +1591,22 @@ testing = ["covdefaults (>=2.3)", "coverage (>=7.4.4)", "defusedxml (>=0.7.1)",
 
 [[package]]
 name = "sphinx-rtd-theme"
-version = "2.0.0"
+version = "3.0.0"
 description = "Read the Docs theme for Sphinx"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.8"
 files = [
-    {file = "sphinx_rtd_theme-2.0.0-py2.py3-none-any.whl", hash = "sha256:ec93d0856dc280cf3aee9a4c9807c60e027c7f7b461b77aeffed682e68f0e586"},
-    {file = "sphinx_rtd_theme-2.0.0.tar.gz", hash = "sha256:bd5d7b80622406762073a04ef8fadc5f9151261563d47027de09910ce03afe6b"},
+    {file = "sphinx_rtd_theme-3.0.0-py2.py3-none-any.whl", hash = "sha256:1ffe1539957775bfa0a7331370de7dc145b6eac705de23365dc55c5d94bb08e7"},
+    {file = "sphinx_rtd_theme-3.0.0.tar.gz", hash = "sha256:905d67de03217fd3d76fbbdd992034ac8e77044ef8063a544dda1af74d409e08"},
 ]
 
 [package.dependencies]
-docutils = "<0.21"
-sphinx = ">=5,<8"
+docutils = ">0.18,<0.22"
+sphinx = ">=6,<9"
 sphinxcontrib-jquery = ">=4,<5"
 
 [package.extras]
-dev = ["bump2version", "sphinxcontrib-httpdomain", "transifex-client", "wheel"]
+dev = ["bump2version", "transifex-client", "twine", "wheel"]
 
 [[package]]
 name = "sphinxcontrib-applehelp"
@@ -1968,4 +1968,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "e35c5c1c473625dba9041233b7d10e28f94c2c48531459c3bc1d44fad24f7605"
+content-hash = "aa479f35027fd8cf61b01875b0cfff7922441194c248b0c0140bafea89da09b3"
diff --git a/pyproject.toml b/pyproject.toml
index 3fcd9f2c..6dd170d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -75,7 +75,7 @@ sphinx = ">=6.1.3,<8.0.0"
 sphinx-autodoc-typehints = ">=1.22,<3.0"
 sphinxcontrib-programoutput = "^0.17"
 numpydoc = "^1.5.0"
-sphinx_rtd_theme = ">=1.2,<3.0"
+sphinx_rtd_theme = ">=3,<3.1"
 
 [tool.poetry.scripts]
 matrixctl = "matrixctl.__main__:main"