diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index e7a47a5..307023c 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -15,7 +15,12 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.6", "3.7", "3.8", "3.9"]
-        sphinx-version: ["", "4.5", "4.4", "4.3", "4.2", "4.1", "4.0.*", "3.5.*", "3.4.*", "3.2.*",  "3.1.*", "3.0.*"]
+        sphinx-version: [
+          "",
+          "5.0.*",
+          "4.5", "4.4", "4.3", "4.2", "4.1", "4.0.*",
+          "3.5.*", "3.4.*", "3.2.*",  "3.1.*", "3.0.*",
+        ]
         include:
           - python-version: "3.10"
             sphinx-version: ""
diff --git a/setup.py b/setup.py
index 68c01f3..6e580c3 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@ def readme():
       license="Apache-2.0",
       packages=find_packages(exclude=['docs', 'tests*', 'examples']),
       install_requires=[
-          'Sphinx>=2.2,<5.0',
+          'Sphinx>=2.2,<6.0',
       ],
       setup_requires=pytest_runner,
       tests_require=['pytest'],