diff --git a/Gemfile.lock b/Gemfile.lock
index a3a5a6a7d..dd3fe99f4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -341,7 +341,7 @@ GEM
       polyamorous (~> 1.2)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.10)
-      ffi (>= 0.5.0)
+      ffi (< 2, >= 0.5.0)
     rbtrace (0.4.8)
       ffi (>= 1.0.6)
       msgpack (>= 0.4.3)