diff --git a/Gemfile.lock b/Gemfile.lock
index d710d86..3b90a7d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ GEM
       multipart-post (>= 1.2, < 3)
     faraday_middleware (0.11.0.1)
       faraday (>= 0.7.4, < 1.0)
-    ffi (1.9.18)
+    ffi (1.11.1)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
     htmlentities (4.3.4)