diff --git a/_site/Gemfile.lock b/_site/Gemfile.lock
index 94721b2..d6eca9e 100644
--- a/_site/Gemfile.lock
+++ b/_site/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
     fast-stemmer (1.0.2)
-    ffi (1.9.10)
+    ffi (1.12.2)
     gemoji (2.1.0)
     github-pages (39)
       RedCloth (= 4.2.9)