diff --git a/Gemfile.lock b/Gemfile.lock
index 927fd90..3b5a325 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,7 @@ GEM
     eventmachine (1.2.5)
     faraday (0.14.0)
       multipart-post (>= 1.2, < 3)
-    ffi (1.9.23)
+    ffi (1.15.0)
     forwardable-extended (2.6.0)
     gemoji (3.0.0)
     html-pipeline (2.7.1)