Gemfile.lock in rbs-2.8.3 vs Gemfile.lock in rbs-2.8.4

@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    rbs (2.8.3)
+    rbs (2.8.4)
 
 PATH
   remote: test/assets/test-gem
   specs:
     rbs-amber (1.0.0)