Gemfile.lock in headdesk-0.15.1 vs Gemfile.lock in headdesk-0.16.0

@@ -1,13 +1,14 @@
 PATH
   remote: .
   specs:
-    headdesk (0.15.0)
+    headdesk (0.15.1)
       awesome_print (~> 1.8)
       gems (~> 1.1)
       nokogiri (~> 1.10)
       oily_png (~> 1.2)
+      plist (~> 3.5)
       thor (~> 0.20)
 
 GEM
   remote: https://rubygems.org/
   specs:
@@ -32,17 +33,18 @@
     ice_nine (0.11.2)
     jaro_winkler (1.5.2)
     json (2.1.0)
     kwalify (0.7.2)
     mini_portile2 (2.4.0)
-    nokogiri (1.10.7)
+    nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     oily_png (1.2.1)
       chunky_png (~> 1.3.7)
     parallel (1.13.0)
     parser (2.5.3.0)
       ast (~> 2.4.0)
+    plist (3.5.0)
     powerpack (0.1.2)
     psych (3.1.0)
     rainbow (3.0.0)
     rake (10.5.0)
     reek (5.3.0)
@@ -99,6 +101,6 @@
   rspec (~> 3.8)
   rubocop (~> 0, >= 0.49.0)
   simplecov (~> 0, >= 0.16.0)
 
 BUNDLED WITH
-   2.0.1
+   2.1.4