diff --git a/Gemfile b/Gemfile
index 8bde4a5..153a205 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,4 +8,8 @@ group :jekyll_plugins do
     gem 'jekyll-feed'
     gem 'jekyll-redirect-from'
     gem 'jekyll_flexible_include'
-end
\ No newline at end of file
+    gem 'jekyll_picture_tag'
+    gem "jekyll-d2", path: "/Users/math/git/jeykyll-d2/"
+    gem "kramdown-syntax-coderay", "~> 1.0"
+end
+