diff --git a/docs/requirements.txt b/docs/requirements.txt
index a1851bf4..2018d03d 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 sphinx
-sphinx_rtd_theme==1.0.0
+sphinx_rtd_theme==1.2.1
 sphinx-rtd-dark-mode
 sphinx_copybutton
 sphinx-autobuild