diff --git a/Gemfile.lock b/Gemfile.lock
index 6e8db2a9..7b9cf697 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    rspec_api_documentation (6.1.0)
+    rspec_api_documentation (6.1.1)
       activesupport (>= 3.0.0)
       mustache (~> 1.0, >= 0.99.4)
       rspec (~> 3.0)
@@ -75,7 +75,7 @@ GEM
     multi_json (1.11.2)
     multi_test (0.1.2)
     multipart-post (2.0.0)
-    mustache (1.0.5)
+    mustache (1.1.0)
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     pry (0.11.3)
diff --git a/lib/rspec_api_documentation/writers/append_json_writer.rb b/lib/rspec_api_documentation/writers/append_json_writer.rb
index 5eae1f7b..8cdeaea9 100644
--- a/lib/rspec_api_documentation/writers/append_json_writer.rb
+++ b/lib/rspec_api_documentation/writers/append_json_writer.rb
@@ -19,7 +19,7 @@ def self.clear_docs(docs_dir)
       end
     end
 
-    class AppendJsonIndex < JsonIndex
+    class AppendJsonIndex < JSONIndex
       def initialize(index, configuration, existing_index_hash = nil)
         @index = index
         @configuration = configuration
diff --git a/rspec_api_documentation.gemspec b/rspec_api_documentation.gemspec
index 9590586a..52e7a3c3 100644
--- a/rspec_api_documentation.gemspec
+++ b/rspec_api_documentation.gemspec
@@ -3,7 +3,7 @@ $:.unshift lib unless $:.include?(lib)
 
 Gem::Specification.new do |s|
   s.name        = "rspec_api_documentation"
-  s.version     = "6.1.0"
+  s.version     = "6.1.1"
   s.platform    = Gem::Platform::RUBY
   s.authors     = ["Chris Cahoon", "Sam Goldman", "Eric Oestrich"]
   s.email       = ["chris@smartlogicsolutions.com", "sam@smartlogicsolutions.com", "eric@smartlogicsolutions.com"]