diff --git a/doc/source/_static/css/custom.css b/doc/source/_static/css/custom.css
index 089d5c7e0..6d6cb6187 100644
--- a/doc/source/_static/css/custom.css
+++ b/doc/source/_static/css/custom.css
@@ -52,3 +52,8 @@ img.inline-figure {
   /* Make version warning clickable */
   z-index: 1;
 }
+
+/* Adjustment to Version block */
+.rst-versions {
+  z-index: 1200;
+}