diff --git a/Gemfile.lock b/Gemfile.lock
index ff0764b..76b0035 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
     execjs (2.6.0)
     fastimage (1.8.1)
       addressable (~> 2.3, >= 2.3.5)
-    ffi (1.9.10)
+    ffi (1.11.1)
     haml (4.0.7)
       tilt
     hamster (2.0.0)