diff --git a/Gemfile b/Gemfile
index 153c70d..a1989dc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,6 +4,7 @@ source 'https://rubygems.org'
 
 gemspec name: 'recog'
 
+gem 'ffi', '1.16.3'
 gem 'nokogiri'
 
 group :test do
diff --git a/recog b/recog
index 06ca9e9..705148a 160000
--- a/recog
+++ b/recog
@@ -1 +1 @@
-Subproject commit 06ca9e956364e2509af500385ae63a26995cde28
+Subproject commit 705148a96266eee275e0194aace2350c6f1525fa