diff --git a/Gemfile.lock b/Gemfile.lock
index 7091a0e..f41916c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
       ffi (>= 1.3.0)
     execjs (2.5.2)
     fast-stemmer (1.0.2)
-    ffi (1.9.8)
+    ffi (1.11.3)
     hitimes (1.2.2)
     html-proofer (2.6.1)
       activesupport (~> 4.2)