diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index fa30d919e..5f5b5283e 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -35,7 +35,7 @@ GEM
       faraday-net_http (>= 2.0, < 3.1)
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.2)
-    ffi (1.15.5)
+    ffi (1.16.0)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     github-pages (228)