diff --git a/bson.java.gemspec b/bson.java.gemspec
index a03afe7..6bbdb7c 100644
--- a/bson.java.gemspec
+++ b/bson.java.gemspec
@@ -14,7 +14,7 @@ Gem::Specification.new do |s|
   s.files  = ['LICENSE.txt']
   s.files += ['lib/bson.rb'] + Dir['lib/bson/**/*.rb']
   s.files += ['bin/b2json', 'bin/j2bson']
-  s.files += ['ext/java/jar/jbson.jar', 'ext/java/jar/mongo-2.4.jar']
+  s.files += ['ext/java/jar/jbson.jar', 'ext/java/jar/mongo-2.6.5.jar']
   s.test_files = Dir['test/bson/*.rb']
 
   s.executables = ['b2json', 'j2bson']