1 files changed, 2 insertions, 6 deletions
diff --git a/lib/rubygems/commands/outdated_command.rb b/lib/rubygems/commands/outdated_command.rb
index 7b6e1cfe8e..8b7dda6c7d 100644
--- a/lib/rubygems/commands/outdated_command.rb
+++ b/lib/rubygems/commands/outdated_command.rb
@@ -22,10 +22,8 @@ class Gem::Commands::OutdatedCommand < Gem::Command
   end
 
   def execute
-    locals = Gem::SourceIndex.from_installed_gems
-
-    locals.outdated.sort.each do |name|
-      local   = locals.find_name(name).last
+    Gem::Specification.outdated.sort.each do |name|
+      local   = Gem::Specification.find_all_by_name(name).max
       dep     = Gem::Dependency.new local.name, ">= #{local.version}"
       remotes = Gem::SpecFetcher.fetcher.fetch dep
 
@@ -35,6 +33,4 @@ class Gem::Commands::OutdatedCommand < Gem::Command
       say "#{local.name} (#{local.version} < #{remote.version})"
     end
   end
-
 end
-