Gemfile.lock in vault-usage-client-0.0.9 vs Gemfile.lock in vault-usage-client-0.0.10

@@ -44,10 +44,10 @@
       blankslate (~> 2.0)
     pry (0.10.0)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.5.2)
+    rack (1.6.4)
     rack-test (0.6.2)
       rack (>= 1.0)
     rake (10.1.0)
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)