diff --git a/docs/source/_assets/less/prism.less b/docs/source/_assets/less/prism.less
index 88fd54d40..a918e4c91 100644
--- a/docs/source/_assets/less/prism.less
+++ b/docs/source/_assets/less/prism.less
@@ -73,7 +73,7 @@ pre[class*="language-"] {
 .token.prolog,
 .token.doctype,
 .token.cdata {
-  @apply .text-grey;
+  @apply .text-grey-dark;
 }
 
 .token.punctuation {