diff --git a/Gemfile.lock b/Gemfile.lock
index 9afc35a..f62e6c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,8 +5,8 @@ GEM
     colorator (1.1.0)
     faraday (0.9.2)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.14)
-    ffi (1.9.14-x64-mingw32)
+    ffi (1.11.3)
+    ffi (1.11.3-x64-mingw32)
     forwardable-extended (2.6.0)
     jekyll (3.2.1)
       colorator (~> 1.0)