diff --git a/Gemfile b/Gemfile
index 836fce72f9..0a69b58d65 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,9 +44,7 @@ gem 'selectize-rails', '0.12.1' # include selectize.js for select
 gem 'kaminari',         '0.16.3'  # pagination
 gem 'coderay',          '1.1.0'   # xml console visualize
 gem 'select2-rails',    '3.5.9.3' # for autocomplete
-
-# rights
-gem 'cancancan', '1.11.0' # autharization
+gem 'cancancan'
 gem 'devise', '~> 4.0'
 
 gem 'grape'
diff --git a/Gemfile.lock b/Gemfile.lock
index badb5a81b2..ac53ec1029 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -132,7 +132,7 @@ GEM
     bullet (4.14.7)
       activesupport (>= 3.0.0)
       uniform_notifier (~> 1.9.0)
-    cancancan (1.11.0)
+    cancancan (3.0.1)
     capybara (3.22.0)
       addressable
       mini_mime (>= 0.1.3)
@@ -466,7 +466,7 @@ DEPENDENCIES
   autodoc
   bootstrap-sass (~> 3.4)
   bullet (= 4.14.7)
-  cancancan (= 1.11.0)
+  cancancan
   capybara
   coderay (= 1.1.0)
   coffee-rails (= 4.1.0)