diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bdc263d4..8ea836a9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
       matrix:
         os: [Ubuntu]
         python-version: ["3.7", "3.8", "3.9", "3.10"]
-        sphinx-version: ["sphinx==3.0", "sphinx==4.0", "sphinx>4.4"]
+        sphinx-version: ["sphinx==3.5.4"]
     steps:
       - uses: actions/checkout@v2