diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 33180b55..3b688c0a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -29,9 +29,10 @@ jobs:
         sphinx: [">=4,<5"]
         os: [ubuntu-latest]
         include:
-          - os: ubuntu-latest
-            python-version: "3.8"
-            sphinx: ">=3,<4"
+          # fails because of: https://github.com/sphinx-doc/sphinx/issues/10291
+          # - os: ubuntu-latest
+          #   python-version: "3.8"
+          #   sphinx: ">=3,<4"
           - os: windows-latest
             python-version: "3.8"
             sphinx: ">=4,<5"