Gemfile.lock in mailtrap-2.1.2 vs Gemfile.lock in mailtrap-2.2.0

@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    mailtrap (2.1.2)
+    mailtrap (2.2.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
     addressable (2.8.7)