diff --git a/Gemfile.lock b/Gemfile.lock
index 96ebd5b..72a6ba2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -112,7 +112,7 @@ GEM
       railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
-    diffy (3.4.0)
+    diffy (3.4.2)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     dotenv (2.7.6)