diff --git a/Gemfile.lock b/Gemfile.lock
index 0b2a6a9..306d0b5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
     colorator (0.1)
     execjs (2.2.1)
     fast-stemmer (1.0.2)
-    ffi (1.9.3)
+    ffi (1.11.1)
     gemoji (2.0.0)
     github-pages (22)
       RedCloth (= 4.2.9)