diff --git a/Gemfile.lock b/Gemfile.lock
index 3ecf8b7d..b16aedbc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
       addressable (>= 2.1.1)
       eventmachine (>= 0.12.9)
     eventmachine (1.0.8)
-    ffi (1.9.10)
+    ffi (1.11.1)
     listen (3.0.5)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)