diff --git a/Gemfile.lock b/Gemfile.lock
index af9b9c0..90be4c9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -689,12 +689,12 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.1.5)
     connection_pool (2.2.2)
     crass (1.0.4)
     csv (3.0.2)
     debug_inspector (0.0.3)
-    erubi (1.7.1)
+    erubi (1.9.0)
     ethon (0.12.0)
       ffi (>= 1.3.0)
     excon (0.62.0)
@@ -721,7 +721,7 @@ GEM
       temple (>= 0.8.0)
       tilt
     highline (1.7.10)
-    i18n (1.1.0)
+    i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     io-like (0.3.0)
     jbuilder (2.7.0)
@@ -770,7 +770,7 @@ GEM
     mini_portile2 (2.4.0)
     mini_racer (0.2.4)
       libv8 (>= 6.3)
-    minitest (5.11.3)
+    minitest (5.12.2)
     multi_json (1.13.1)
     multipart-post (2.1.1)
     nested_form (0.3.2)
@@ -792,7 +792,7 @@ GEM
     pusher-client (0.6.2)
       json
       websocket (~> 1.0)
-    rack (2.0.5)
+    rack (2.0.7)
     rack-pjax (1.0.0)
       nokogiri (~> 1.5)
       rack (>= 1.1)
@@ -814,7 +814,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.4)
+    rails-html-sanitizer (1.2.0)
       loofah (~> 2.2, >= 2.2.2)
     rails_admin (1.4.2)
       builder (~> 3.1)
@@ -864,7 +864,7 @@ GEM
     selenium-webdriver (3.14.0)
       childprocess (~> 0.5)
       rubyzip (~> 1.2)
-    simple_form (4.0.1)
+    simple_form (5.0.0)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
     spring (2.0.2)