diff --git a/Gemfile.lock b/Gemfile.lock
index e62332b42f..06ed4237bd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,7 +17,7 @@ GEM
     ethon (0.11.0)
       ffi (>= 1.3.0)
     eventmachine (1.2.6)
-    ffi (1.9.23)
+    ffi (1.13.1)
     forwardable-extended (2.6.0)
     html-proofer (3.8.0)
       activesupport (>= 4.2, < 6.0)