diff --git a/Gemfile b/Gemfile
index 11abbcfe..3d76b568 100644
--- a/Gemfile
+++ b/Gemfile
@@ -62,7 +62,7 @@ gem 'transitions', :require => %w( transitions active_record/transitions )
 
 # for comments
 gem 'acts_as_commentable_with_threading'
-gem 'awesome_nested_set', '~> 3.1.3'
+gem 'awesome_nested_set'
 
 # as templating language
 gem 'haml-rails'
diff --git a/Gemfile.lock b/Gemfile.lock
index 6ea92cb7..bce300a9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -610,7 +610,7 @@ DEPENDENCIES
   airbrake (~> 7.1)
   ajax-datatables-rails
   autoprefixer-rails
-  awesome_nested_set (~> 3.1.3)
+  awesome_nested_set
   axlsx!
   axlsx_rails
   bootstrap-sass (~> 3.4.0)