diff --git a/Gemfile.lock b/Gemfile.lock
index 069dbd68..7c214b3b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ GEM
     ethon (0.8.0)
       ffi (>= 1.3.0)
     execjs (2.6.0)
-    ffi (1.9.10)
+    ffi (1.9.24)
     ffi-icu (0.1.10)
       ffi (~> 1.0, >= 1.0.9)
     html-proofer (2.1.0)