diff --git a/poetry.lock b/poetry.lock
index 555bf5a..1b5ade3 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -344,18 +344,18 @@ test = ["pytest", "pytest-cov"]
 
 [[package]]
 name = "sphinx-rtd-theme"
-version = "1.0.0"
+version = "1.1.0"
 description = "Read the Docs theme for Sphinx"
 category = "dev"
 optional = false
-python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
 
 [package.dependencies]
 docutils = "<0.18"
-sphinx = ">=1.6"
+sphinx = ">=1.6,<6"
 
 [package.extras]
-dev = ["bump2version", "sphinxcontrib-httpdomain", "transifex-client"]
+dev = ["bump2version", "sphinxcontrib-httpdomain", "transifex-client", "wheel"]
 
 [[package]]
 name = "sphinxcontrib-applehelp"
@@ -680,8 +680,8 @@ sphinx-autobuild = [
     {file = "sphinx_autobuild-2021.3.14-py3-none-any.whl", hash = "sha256:8fe8cbfdb75db04475232f05187c776f46f6e9e04cacf1e49ce81bdac649ccac"},
 ]
 sphinx-rtd-theme = [
-    {file = "sphinx_rtd_theme-1.0.0-py2.py3-none-any.whl", hash = "sha256:4d35a56f4508cfee4c4fb604373ede6feae2a306731d533f409ef5c3496fdbd8"},
-    {file = "sphinx_rtd_theme-1.0.0.tar.gz", hash = "sha256:eec6d497e4c2195fa0e8b2016b337532b8a699a68bcb22a512870e16925c6a5c"},
+    {file = "sphinx_rtd_theme-1.1.0-py2.py3-none-any.whl", hash = "sha256:36da4267c804b98197419df8aa415d245449b8945301fce8c961038e0ba79ec5"},
+    {file = "sphinx_rtd_theme-1.1.0.tar.gz", hash = "sha256:6e20f00f62b2c05434a33c5116bc3348a41ca94af03d3d7d1714c63457073bb3"},
 ]
 sphinxcontrib-applehelp = [
     {file = "sphinxcontrib-applehelp-1.0.2.tar.gz", hash = "sha256:a072735ec80e7675e3f432fcae8610ecf509c5f1869d17e2eecff44389cdbc58"},