diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index 3ffb9ca2..02c7ada8
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,8 +4,8 @@ GEM
     addressable (2.5.1)
       public_suffix (~> 2.0, >= 2.0.2)
     colorator (1.1.0)
-    ffi (1.9.18)
-    ffi (1.9.18-x64-mingw32)
+    ffi (1.11.1)
+    ffi (1.11.1-x64-mingw32)
     forwardable-extended (2.6.0)
     jekyll (3.5.1)
       addressable (~> 2.4)