diff --git a/Gemfile.lock b/Gemfile.lock
index 4c528c2..0dfe0d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GEM
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
-    ffi (1.9.3)
+    ffi (1.12.2)
     formatador (0.2.5)
     guard (2.6.1)
       formatador (>= 0.2.4)