diff --git a/Gemfile.lock b/Gemfile.lock
index acacfff..23e6fc8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
       railties (>= 3.0.0)
     faker (1.8.7)
       i18n (>= 0.7)
-    ffi (1.9.23)
+    ffi (1.15.0)
     font-awesome-rails (4.7.0.4)
       railties (>= 3.2, < 6.0)
     globalid (0.4.1)