diff --git a/guide/public/assets/code.css b/guide/public/assets/code.css
index 865fe9bf..5f666f73 100644
--- a/guide/public/assets/code.css
+++ b/guide/public/assets/code.css
@@ -22,6 +22,7 @@ span.linenos.special { color: #000000; background-color: #ffffc0; padding-left:
 .cs { color: #a2a2a2; font-style: italic } /* Comment.Special */
 .gd { color: #777777 } /* Generic.Deleted */
 .ge { color: #777777 } /* Generic.Emph */
+.ges { color: #777777 } /* Generic.EmphStrong */
 .gr { color: #777777 } /* Generic.Error */
 .gh { color: #777777 } /* Generic.Heading */
 .gi { color: #777777 } /* Generic.Inserted */
diff --git a/guide/requirements.txt b/guide/requirements.txt
index ae6ef3b4..9e9690c2 100644
--- a/guide/requirements.txt
+++ b/guide/requirements.txt
@@ -2,4 +2,7 @@ sanic>=23.6.*
 sanic-ext>=23.6.*
 msgspec
 python-frontmatter
-mistune
+pygments
+docstring-parser
+libsass
+