diff --git a/packages.txt b/packages.txt
index 0a80e91..8ef9781 100644
--- a/packages.txt
+++ b/packages.txt
@@ -3599,3 +3599,6 @@ js-jquery
 ipython
 python-pyproject-metadata
 rubygem-ronn-ng
+rubygem-kramdown-parser-gfm
+rubygem-mustache
+rubygem-nokogiri