diff --git a/Gemfile.lock b/Gemfile.lock
index e2f78cff947..7ce15a08871 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,8 +25,8 @@ GEM
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
-    ffi (1.15.0)
-    ffi (1.15.0-x64-mingw32)
+    ffi (1.15.1)
+    ffi (1.15.1-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
     i18n (1.8.10)