diff --git a/Gemfile.lock b/Gemfile.lock
index ac1fb6c..1127242 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -70,7 +70,7 @@ GEM
     concurrent-ruby (1.0.5)
     erubi (1.6.1)
     execjs (2.7.0)
-    ffi (1.9.18)
+    ffi (1.15.0)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
     i18n (0.8.6)