diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 7a6257394..8fac90615 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -19,7 +19,7 @@ GEM
     execjs (2.7.0)
     faraday (0.13.1)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.18)
+    ffi (1.9.24)
     forwardable-extended (2.6.0)
     gemoji (2.1.0)
     github-pages (106)