workbook.gemspec in workbook-0.4.6.0 vs workbook.gemspec in workbook-0.4.7

@@ -5,26 +5,28 @@
 require "workbook/version"
 
 Gem::Specification.new do |s|
   s.name        = 'workbook'
   s.rubyforge_project = 'workbook'
+  s.license = "MIT"
   s.version     = Workbook::VERSION
   s.date        = '2013-04-05'
   s.summary     = "Workbook is a datastructure to contain books of tables (an anlogy used in e.g. Excel)"
   s.description = "Workbook contains workbooks, as in a table, contains rows, contains cells, reads/writes excel, ods and csv and tab separated files, and offers basic diffing and sorting capabilities."
   s.authors     = ["Maarten Brouwers"]
-  s.add_development_dependency 'ruby-prof'
-  s.add_dependency('rubyzip', '0.9.9')
-  s.add_dependency('spreadsheet', '>= 0.7.5')
+  s.add_development_dependency 'ruby-prof', '~> 0.14'
+  s.add_dependency('rubyzip', '~>1')
+  s.add_dependency('spreadsheet', '~> 0.7')
   s.add_dependency('fastercsv') if RUBY_VERSION < "1.9"
   s.add_dependency("rchardet", "~> 1.3")
-  s.add_dependency("rake")
-  s.add_dependency("json")
-  s.add_dependency('rubyXL')
+  s.add_dependency("rake", '~> 10.0')
+  s.add_dependency("json", '~> 1.8')
+  s.add_dependency("zip-zip", '~> 0.2') #actually a hack...
+  s.add_dependency('rubyXL', '~> 2.5')
   if RUBY_VERSION < "1.9"
     s.add_dependency('nokogiri', "~> 1.5.10")
   else
-    s.add_dependency('nokogiri')
+    s.add_dependency('nokogiri', '~> 1.6')
   end
   s.platform    = Gem::Platform::RUBY
   s.files         = `git ls-files`.split($/)
   s.test_files    = s.files.grep(%r{^(test|spec|features)/})
   s.executables   = s.files.grep(%r{^bin/}).map{ |f| File.basename(f) }