diff --git a/Gemfile.lock b/Gemfile.lock
index a5ec6f7..5ac8989 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,4 +1,4 @@
 GEM
   remote: https://rubygems.org
   specs:
-    ffi (.16.3)
+    ffi (1.16.3)