diff --git a/Gemfile.lock b/Gemfile.lock
index 5659a8b..b0f0ffb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,8 +5,8 @@ GEM
     colorator (0.1)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.10)
-    ffi (1.9.10-x64-mingw32)
+    ffi (1.11.1)
+    ffi (1.11.1-x64-mingw32)
     jekyll (3.1.2)
       colorator (~> 0.1)
       jekyll-sass-converter (~> 1.0)