diff --git a/Gemfile.lock b/Gemfile.lock
index f8cfc96..a3c4a98 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
       sass (>= 3.3.0, < 3.5)
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
-    ffi (1.9.14)
+    ffi (1.13.1)
     multi_json (1.12.1)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)