diff --git a/Gemfile.lock b/Gemfile.lock
index 7f3a347..9f1d911 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -100,7 +100,7 @@ GEM
       responders
       warden (~> 1.2.3)
     diff-lcs (1.5.0)
-    diffy (3.4.0)
+    diffy (3.4.2)
     digest (3.1.0)
     erubi (1.11.0)
     execjs (2.8.1)