diff --git a/test-requirements.txt b/test-requirements.txt
index 80a5be1fd..fe4b9c577 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -6,7 +6,7 @@ pluggy>=0.3.1
 py>=1.4.31
 randomize>=0.13
 mock>=2.0.0
-sphinx>=1.4 # BSD
+sphinx>=8.1.3 # BSD
 recommonmark
 sphinx_markdown_tables
 pycodestyle