diff --git a/Gemfile b/Gemfile
index 80f0ecaa..9505d85e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,10 +1,13 @@
 source "https://rubygems.org"
 
-gem "jekyll", "~> 4.0"
+gem "jekyll", "~> 4.3.3"
 gem "jekyll-paginate"
 gem "jekyll-gist"
 gem 'jekyll-feed'
 gem "json"
 gem "rouge"
+gem "csv"
+gem "base64"
+gem "bigdecimal"
 gem "sassc", "~> 2.3.0"
 gem 'jekyll-compose', group: [:jekyll_plugins]