diff --git a/Gemfile b/Gemfile
index c4202f4..c7cc8cc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,6 @@
 source "http://rubygems.org"
 
+gem "rake"
 
 gem "salama-object-file" , :path => "."
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 8c78b9a..ca29b4d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,12 +1,13 @@
 PATH
   remote: .
   specs:
-    salama-object-file (0.1)
+    salama-object-file (0.2.0)
 
 GEM
   remote: http://rubygems.org/
   specs:
     minitest (5.6.1)
+    rake (10.4.2)
     rubygems-tasks (0.2.4)
 
 PLATFORMS
@@ -14,5 +15,6 @@ PLATFORMS
 
 DEPENDENCIES
   minitest
+  rake
   rubygems-tasks
   salama-object-file!
diff --git a/salama-object-file.gemspec b/salama-object-file.gemspec
index 305338c..d96c6f0 100644
--- a/salama-object-file.gemspec
+++ b/salama-object-file.gemspec
@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |s|
   s.name = 'salama-object-file'
-  s.version = '0.1'
+  s.version = '0.2.0'
 
   s.authors = ['Torsten Ruger']
   s.email = 'torsten@villataika.fi'