Gemfile.lock in nds_api-0.1.20 vs Gemfile.lock in nds_api-0.1.21

@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    nds_api (0.1.20)
+    nds_api (0.1.21)
 
 GEM
   remote: https://rubygems.org/
   specs:
     rake (12.3.1)