diff --git a/Gemfile.lock b/Gemfile.lock
index 7b3c85d..5bac24a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
     faraday (0.13.1)
       multipart-post (>= 1.2, < 3)
     fast-stemmer (1.0.2)
-    ffi (1.9.18)
+    ffi (1.12.2)
     jekyll (2.5.3)
       classifier-reborn (~> 2.0)
       colorator (~> 0.1)