diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index eb965fb..90833b8
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
       ffi (>= 1.3.0)
     faraday (0.13.1)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.18)
+    ffi (1.11.1)
     forwardable-extended (2.6.0)
     jekyll (3.6.2)
       addressable (~> 2.4)