diff --git a/Gemfile.lock b/Gemfile.lock
index 7be4e94..98cdf52 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
     debugger-ruby_core_source (1.3.7)
     diff-lcs (1.2.5)
     docile (1.1.5)
-    ffi (1.9.6)
+    ffi (1.12.2)
     gosu (0.13.3)
     hitimes (1.2.2)
     i18n (0.7.0)