Gemfile.lock in headdesk-0.8.0 vs Gemfile.lock in headdesk-0.9.0

@@ -1,11 +1,12 @@
 PATH
   remote: .
   specs:
-    headdesk (0.8.0)
+    headdesk (0.9.0)
       awesome_print (~> 1.8)
       nokogiri (~> 1.10)
+      oily_png (~> 1.2)
       thor (~> 0.20)
 
 GEM
   remote: https://rubygems.org/
   specs:
@@ -13,10 +14,11 @@
     awesome_print (1.8.0)
     axiom-types (0.1.1)
       descendants_tracker (~> 0.0.4)
       ice_nine (~> 0.11.0)
       thread_safe (~> 0.3, >= 0.3.1)
+    chunky_png (1.3.11)
     codeclimate-engine-rb (0.4.1)
       virtus (~> 1.0)
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
     descendants_tracker (0.0.4)
@@ -27,9 +29,11 @@
     jaro_winkler (1.5.2)
     kwalify (0.7.2)
     mini_portile2 (2.4.0)
     nokogiri (1.10.1)
       mini_portile2 (~> 2.4.0)
+    oily_png (1.2.1)
+      chunky_png (~> 1.3.7)
     parallel (1.12.1)
     parser (2.5.3.0)
       ast (~> 2.4.0)
     powerpack (0.1.2)
     psych (3.1.0)