diff --git a/Rakefile b/Rakefile
index 41f822cd..ce390952 100644
--- a/Rakefile
+++ b/Rakefile
@@ -89,7 +89,7 @@ if defined?(Gem) and defined?(Gem::PackageTask)
 
     s.require_path = 'lib'
     s.add_development_dependency 'rake'
-    s.add_development_dependency 'test-unit', '~> 3.0'
+    s.add_development_dependency 'test-unit', '~> 2.0'
 
     s.extra_rdoc_files << 'README.md'
     s.rdoc_options <<
@@ -127,7 +127,7 @@ if defined?(Gem) and defined?(Gem::PackageTask)
 
     s.require_path = 'lib'
     s.add_development_dependency 'rake'
-    s.add_development_dependency 'test-unit', '~> 3.0'
+    s.add_development_dependency 'test-unit', '~> 2.0'
 
     s.extra_rdoc_files << 'README.md'
     s.rdoc_options <<
diff --git a/ext/json/ext/parser/parser.c b/ext/json/ext/parser/parser.c
index 0f98cf98..bc4ac46e 100644
--- a/ext/json/ext/parser/parser.c
+++ b/ext/json/ext/parser/parser.c
@@ -1,4 +1,4 @@
-/* This file is automatically generated from parser.rl by using ragel */
+
 #line 1 "parser.rl"
 #include "../fbuffer/fbuffer.h"
 #include "parser.h"
diff --git a/json-java.gemspec b/json-java.gemspec
index c99ed89d..f3fa0c91 100755
--- a/json-java.gemspec
+++ b/json-java.gemspec
@@ -19,14 +19,14 @@ spec = Gem::Specification.new do |s|
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_development_dependency(%q<rake>, [">= 0"])
-      s.add_development_dependency(%q<test-unit>, ["~> 3.0"])
+      s.add_development_dependency(%q<test-unit>, ["~> 2.0"])
     else
       s.add_dependency(%q<rake>, [">= 0"])
-      s.add_dependency(%q<test-unit>, ["~> 3.0"])
+      s.add_dependency(%q<test-unit>, ["~> 2.0"])
     end
   else
     s.add_dependency(%q<rake>, [">= 0"])
-    s.add_dependency(%q<test-unit>, ["~> 3.0"])
+    s.add_dependency(%q<test-unit>, ["~> 2.0"])
   end
 end
 
diff --git a/json_pure.gemspec b/json_pure.gemspec
index 6ee2f4da..c0f1c51a 100644
--- a/json_pure.gemspec
+++ b/json_pure.gemspec
@@ -27,9 +27,9 @@ Gem::Specification.new do |s|
 
   if s.respond_to? :add_runtime_dependency then
     s.add_development_dependency(%q<rake>.freeze, [">= 0"])
-    s.add_development_dependency(%q<test-unit>.freeze, ["~> 3.0"])
+    s.add_development_dependency(%q<test-unit>.freeze, ["~> 2.0"])
   else
     s.add_dependency(%q<rake>.freeze, [">= 0"])
-    s.add_dependency(%q<test-unit>.freeze, ["~> 3.0"])
+    s.add_dependency(%q<test-unit>.freeze, ["~> 2.0"])
   end
 end