diff --git a/Gemfile b/Gemfile
index 3189640..02e974a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
-gem 'deface', '< 1.0.0'
+gem 'deface', '~> 1.0.2'
 
 group :development do
   gem 'diffy'
diff --git a/README.md b/README.md
index 59c8a12..c8f1f5e 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,8 @@ This plugin allows Redmine users to select themes in their account settings. The
 
 ## Compatibility
 
-This plugin version is compatible only with Redmine 2.1.x and later.
+This plugin version is compatible only with Redmine 3.x and later.  
+<sup>**note**: Tested just on *Redmine 3.1*</sup>  
 
 ## Installation
 
diff --git a/app/overrides/users/_preferences.rb b/app/overrides/users/_preferences.rb
index d87a249..f64fea0 100644
--- a/app/overrides/users/_preferences.rb
+++ b/app/overrides/users/_preferences.rb
@@ -1,5 +1,5 @@
 Deface::Override.new(
     :virtual_path => 'users/_preferences',
     :name => 'user_ui_theme_preference',
-    :insert_before => 'code[erb-silent]:contains("end"):last',
+    :insert_before => 'erb[silent]:contains("end"):last',
     :text => '<p><%= pref_fields.select :ui_theme, Redmine::Themes.themes.collect {|t| [t.name, t.id]}, { :include_blank => true } %></p>')
diff --git a/init.rb b/init.rb
index 0c6360c..c5588fa 100644
--- a/init.rb
+++ b/init.rb
@@ -8,8 +8,8 @@
   name        'Redmine User-Specific Theme Plugin'
   description 'This plugin allows users to set Redmine themes in the account settings.'
   author      'Undev'
-  version     '1.0.0'
+  version     '1.1.0'
   url         'https://github.com/Undev/redmine_user_specific_theme'
 
-  requires_redmine :version_or_higher => '2.1'
+  requires_redmine :version_or_higher => '3.1'
 end