Gemfile.lock in super_tools-0.0.14 vs Gemfile.lock in super_tools-0.0.15

@@ -142,10 +142,10 @@
     multi_json (1.13.1)
     multipart-post (2.0.0)
     nio4r (2.3.1)
     nokogiri (1.9.1)
       mini_portile2 (~> 2.4.0)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.3)
       actioncable (= 5.2.3)
       actionmailer (= 5.2.3)