diff --git a/python/docs/requirements.txt b/python/docs/requirements.txt
index 0049dfb892..784c889b4c 100644
--- a/python/docs/requirements.txt
+++ b/python/docs/requirements.txt
@@ -1,5 +1,5 @@
 googleapis-common-protos==1.56.1
 jinja2==3.0.0
-sphinx==2.3.1
+sphinx==3.0.4
 sphinx_rtd_theme==0.4.3
 sphinxcontrib-napoleon==0.7