diff --git a/Gemfile.lock b/Gemfile.lock
index f347186..b5ea265 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -117,7 +117,7 @@ GEM
     execjs (2.7.0)
     faraday (0.12.1)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.18)
+    ffi (1.13.1)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     i18n (0.9.5)