diff --git a/docs/requirements.txt b/docs/requirements.txt
index a5572ca2..e38b10ad 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 alabaster==0.7.12
-Sphinx==3.3.1
+Sphinx==3.4.0
 sphinx-rtd-theme==0.5.0