diff --git a/Gemfile.lock b/Gemfile.lock
index 68bdaad..48b4c2c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,7 +28,7 @@ GEM
       ffi (~> 1.0, >= 1.0.11)
     configuration (1.3.2)
     erubis (2.7.0)
-    ffi (1.4.0)
+    ffi (1.11.1)
     highline (1.6.15)
     i18n (0.6.1)
     ipaddress (0.8.0)