diff --git a/Gemfile.lock b/Gemfile.lock
index 7c000fd..53cf705 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,7 +15,7 @@ GEM
       sass (>= 3.3.0, < 3.5)
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
-    ffi (1.9.10)
+    ffi (1.11.1)
     jekyll (3.0.1)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)