diff --git a/docs/source/conf.py b/docs/source/conf.py
index caff737e7..9781933f5 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -93,6 +93,8 @@
                   ('py:class', 'unittest.case.TestCase'),
                   ]
 
+suppress_warnings = ["config.cache"]
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ["_templates"]