diff --git a/Gemfile.lock b/Gemfile.lock
index b602c46..6df89ee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -46,7 +46,7 @@ GEM
     fast_blank (1.0.0)
     fastimage (2.0.0)
       addressable (~> 2)
-    ffi (1.9.14)
+    ffi (1.13.1)
     haml (4.0.7)
       tilt
     hamster (3.0.0)