diff --git a/Gemfile b/Gemfile
index cb2a8649a..835a6996a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '>= 2.3.0', '< 2.5.0'
 gem 'pkg-config', '~> 1.2'
 
 gem 'puma', '~> 3.8'
-gem 'rails', '~> 5.0.0'
+gem 'rails', '~> 5.1.0'
 gem 'uglifier', '~> 3.2'
 
 gem 'hamlit-rails', '~> 0.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 8c2cdfa4e..c7ea6d79e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -528,7 +528,7 @@ DEPENDENCIES
   rack-attack (~> 5.0)
   rack-cors (~> 0.4)
   rack-timeout (~> 0.4)
-  rails (~> 5.0.0)
+  rails (~> 5.1.0)
   rails-controller-testing (~> 1.0)
   rails-i18n (~> 5.0)
   rails-settings-cached (~> 0.6)