Gemfile.lock in pdfkit-0.5.3 vs Gemfile.lock in pdfkit-0.5.4

@@ -1,20 +1,23 @@
 PATH
   remote: .
   specs:
-    pdfkit (0.5.3)
+    pdfkit (0.5.4)
 
 GEM
-  remote: http://rubygems.org/
+  remote: https://rubygems.org/
   specs:
     activesupport (3.0.9)
     diff-lcs (1.1.2)
+    json (1.7.7)
     mocha (0.9.12)
     rack (1.3.0)
     rack-test (0.6.0)
       rack (>= 1.0)
     rake (0.9.2)
+    rdoc (4.0.1)
+      json (~> 1.4)
     rspec (2.2.0)
       rspec-core (~> 2.2)
       rspec-expectations (~> 2.2)
       rspec-mocks (~> 2.2)
     rspec-core (2.6.4)
@@ -30,7 +33,8 @@
   activesupport (>= 3.0.8)
   mocha (>= 0.9.10)
   pdfkit!
   rack-test (>= 0.5.6)
   rake (~> 0.9.2)
+  rdoc (~> 4.0.1)
   rspec (~> 2.2.0)
   wkhtmltopdf-binary (~> 0.9.5)