diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index c9cfbe8..9b381ef
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     colorator (1.1.0)
-    ffi (1.9.14)
+    ffi (1.11.3)
     forwardable-extended (2.6.0)
     jekyll (3.2.1)
       colorator (~> 1.0)