diff --git a/requirements-docs.txt b/requirements-docs.txt
index 90edd8e31..9d6117ada 100644
--- a/requirements-docs.txt
+++ b/requirements-docs.txt
@@ -1,4 +1,4 @@
-Sphinx==1.8.6
+Sphinx==3.0.4
 Jinja2==2.11.3
 MarkupSafe==0.23
 alabaster<0.7.14