diff --git a/CHANGELOG b/CHANGELOG
index 42827c9..fe22ea7 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,12 @@
+- 0.6.0
+
+ * add SCRAM-SHA-1 authentication mechanism
+ * add aggregation pipeline
+ * allow passing options to create_collection
+ 
+ * fix usage of em-mongo git repos with bundler
+ * update dependencies to bson <= 2.0, eventmachine >=0.12.10, <= 2.0
+
 - 0.5.1
 
   * fixed bson dependency (do not use 2.x)
diff --git a/VERSION b/VERSION
index 09a3acf..a918a2a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.6.0
\ No newline at end of file
+0.6.0
diff --git a/em-mongo.gemspec b/em-mongo.gemspec
index d661e42..021680c 100755
--- a/em-mongo.gemspec
+++ b/em-mongo.gemspec
@@ -1,4 +1,6 @@
-require_relative 'lib/em-mongo/version.rb' #for version
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'em-mongo/version.rb' #for version
 
 Gem::Specification.new do |s|
   s.name    = 'em-mongo'
@@ -23,6 +25,6 @@ Gem::Specification.new do |s|
 
   s.summary = 'An EventMachine driver for MongoDB.'
 
-  s.add_dependency 'eventmachine', ['<= 2.0']
-  s.add_dependency  'bson', ['<= 2.0']
+  s.add_dependency 'eventmachine', ['>=0.12.10', '< 2.0']
+  s.add_dependency 'bson',         ['>=1.9.2'  , '< 2.0']
 end