diff --git a/Gemfile.lock b/Gemfile.lock
index 179b190..e36516f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
     commander (4.1.6)
       highline (~> 1.6.11)
     fast-stemmer (1.0.2)
-    ffi (1.9.3)
+    ffi (1.12.2)
     gemoji (1.5.0)
     github-pages (18)
       RedCloth (= 4.2.9)