diff --git a/Gemfile b/Gemfile
index 629f06d9a..195c00c53 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 
 # core - base
 ruby '2.4.4'
-gem 'rails', '5.1.5'
+gem 'rails', '5.1.6.1'
 
 # core - rails additions
 gem 'activerecord-import'
diff --git a/Gemfile.lock b/Gemfile.lock
index 474aadb50..563e2eaf4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,37 +23,37 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.1.5)
-      actionpack (= 5.1.5)
+    actioncable (5.1.6.1)
+      actionpack (= 5.1.6.1)
       nio4r (~> 2.0)
       websocket-driver (~> 0.6.1)
-    actionmailer (5.1.5)
-      actionpack (= 5.1.5)
-      actionview (= 5.1.5)
-      activejob (= 5.1.5)
+    actionmailer (5.1.6.1)
+      actionpack (= 5.1.6.1)
+      actionview (= 5.1.6.1)
+      activejob (= 5.1.6.1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.1.5)
-      actionview (= 5.1.5)
-      activesupport (= 5.1.5)
+    actionpack (5.1.6.1)
+      actionview (= 5.1.6.1)
+      activesupport (= 5.1.6.1)
       rack (~> 2.0)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.1.5)
-      activesupport (= 5.1.5)
+    actionview (5.1.6.1)
+      activesupport (= 5.1.6.1)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.1.5)
-      activesupport (= 5.1.5)
+    activejob (5.1.6.1)
+      activesupport (= 5.1.6.1)
       globalid (>= 0.3.6)
-    activemodel (5.1.5)
-      activesupport (= 5.1.5)
-    activerecord (5.1.5)
-      activemodel (= 5.1.5)
-      activesupport (= 5.1.5)
+    activemodel (5.1.6.1)
+      activesupport (= 5.1.6.1)
+    activerecord (5.1.6.1)
+      activemodel (= 5.1.6.1)
+      activesupport (= 5.1.6.1)
       arel (~> 8.0)
     activerecord-import (0.25.0)
       activerecord (>= 3.2)
@@ -65,9 +65,9 @@ GEM
       multi_json (~> 1.11, >= 1.11.2)
       rack (>= 1.5.2, < 3)
       railties (>= 4.0, < 5.2)
-    activesupport (5.1.5)
+    activesupport (5.1.6.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
+      i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     addressable (2.5.2)
@@ -105,9 +105,9 @@ GEM
       coffee-script
       execjs
       json
-    composite_primary_keys (10.0.3)
-      activerecord (~> 5.1.0, >= 5.1.5)
-    concurrent-ruby (1.0.5)
+    composite_primary_keys (10.0.5)
+      activerecord (~> 5.1.0, >= 5.1.6)
+    concurrent-ruby (1.1.3)
     coveralls (0.7.1)
       multi_json (~> 1.3)
       rest-client
@@ -199,7 +199,7 @@ GEM
     http-form_data (2.0.0)
     http_parser.rb (0.6.0)
     httpclient (2.8.3)
-    i18n (0.9.5)
+    i18n (1.1.1)
       concurrent-ruby (~> 1.0)
     icalendar (2.4.1)
     icalendar-recurrence (1.1.2)
@@ -233,10 +233,10 @@ GEM
       mime-types (>= 1.16, < 4)
     memoizable (0.4.2)
       thread_safe (~> 0.3, >= 0.3.1)
-    method_source (0.9.0)
-    mime-types (3.1)
+    method_source (0.9.2)
+    mime-types (3.2.2)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2016.0521)
+    mime-types-data (3.2018.0812)
     mini_portile2 (2.3.0)
     minitest (5.11.3)
     multi_json (1.12.2)
@@ -248,7 +248,7 @@ GEM
     nestful (1.1.3)
     net-ldap (0.16.1)
     netrc (0.11.0)
-    nio4r (2.3.0)
+    nio4r (2.3.1)
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
     nori (2.6.0)
@@ -328,17 +328,17 @@ GEM
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.1.5)
-      actioncable (= 5.1.5)
-      actionmailer (= 5.1.5)
-      actionpack (= 5.1.5)
-      actionview (= 5.1.5)
-      activejob (= 5.1.5)
-      activemodel (= 5.1.5)
-      activerecord (= 5.1.5)
-      activesupport (= 5.1.5)
+    rails (5.1.6.1)
+      actioncable (= 5.1.6.1)
+      actionmailer (= 5.1.6.1)
+      actionpack (= 5.1.6.1)
+      actionview (= 5.1.6.1)
+      activejob (= 5.1.6.1)
+      activemodel (= 5.1.6.1)
+      activerecord (= 5.1.6.1)
+      activesupport (= 5.1.6.1)
       bundler (>= 1.3.0)
-      railties (= 5.1.5)
+      railties (= 5.1.6.1)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
@@ -347,9 +347,9 @@ GEM
       loofah (~> 2.2, >= 2.2.2)
     rails-observers (0.1.5)
       activemodel (>= 4.0)
-    railties (5.1.5)
-      actionpack (= 5.1.5)
-      activesupport (= 5.1.5)
+    railties (5.1.6.1)
+      actionpack (= 5.1.6.1)
+      activesupport (= 5.1.6.1)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
@@ -445,7 +445,7 @@ GEM
     therubyracer (0.12.3)
       libv8 (~> 3.16.14.15)
       ref
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     tins (1.15.1)
@@ -561,7 +561,7 @@ DEPENDENCIES
   pry-stack_explorer
   puma
   rack-livereload
-  rails (= 5.1.5)
+  rails (= 5.1.6.1)
   rails-observers
   rb-fsevent
   rchardet (>= 1.8.0)