diff --git a/Gemfile.lock b/Gemfile.lock
index f75d312..0231a8f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,8 +10,8 @@ GEM
       public_suffix (>= 2.0.2, < 4.0)
     colorator (1.1.0)
     concurrent-ruby (1.1.4)
-    ffi (1.9.18)
-    ffi (1.9.18-x64-mingw32)
+    ffi (1.11.1)
+    ffi (1.11.1-x64-mingw32)
     forwardable-extended (2.6.0)
     gemoji (2.1.0)
     html-pipeline (2.9.1)