diff --git a/Gemfile b/Gemfile
index 08513a7..678c5c7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 source "https://rubygems.org"
 gemspec
 
+gem "ffi", "= 1.16.3"
 gem 'github-pages', group: :jekyll_plugins
\ No newline at end of file