diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index eefddda..4896beb
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,7 @@ GEM
     fast_blank (1.0.0)
     fastimage (2.0.1)
       addressable (~> 2)
-    ffi (1.9.17)
+    ffi (1.12.2)
     haml (4.0.7)
       tilt
     hamster (3.0.0)