diff --git a/Gemfile.lock b/Gemfile.lock
index 809da3e..e400bdd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,7 +83,7 @@ GEM
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
     eventmachine (1.2.6)
-    ffi (1.9.23)
+    ffi (1.11.3)
     gherkin (5.0.0)
     haml (5.0.4)
       temple (>= 0.8.0)