diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index d672f5bed2..7570509ee4 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -51,7 +51,7 @@ GEM
     faraday-patron (1.0.0)
     faraday-rack (1.0.0)
     faraday-retry (1.0.3)
-    ffi (1.15.4)
+    ffi (1.15.5)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
     github-pages (223)