diff --git a/Gemfile.lock b/Gemfile.lock
index 6fc4fb2..faaf333 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -77,16 +77,16 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.0.5)
-    crass (1.0.3)
+    concurrent-ruby (1.1.5)
+    crass (1.0.4)
     daemons (1.2.6)
-    devise (4.4.1)
+    devise (4.7.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 4.1.0, < 5.2)
+      railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
-    erubi (1.7.0)
+    erubi (1.8.0)
     eventmachine (1.2.5)
     execjs (2.7.0)
     faker (1.8.7)
@@ -99,7 +99,7 @@ GEM
     haml (5.0.4)
       temple (>= 0.8.0)
       tilt
-    i18n (0.9.3)
+    i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
@@ -116,7 +116,7 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
       ruby_dep (~> 1.2)
-    loofah (2.1.1)
+    loofah (2.2.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.0)
@@ -138,13 +138,13 @@ GEM
     mimemagic (0.3.2)
     mini_magick (4.8.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.4.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     mustermann (1.0.1)
     nio4r (2.2.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.4)
+      mini_portile2 (~> 2.4.0)
     orm_adapter (0.5.0)
     paperclip (5.2.1)
       activemodel (>= 4.2.0)
@@ -165,10 +165,10 @@ GEM
       pry (>= 0.10.4)
     public_suffix (3.0.1)
     puma (3.11.2)
-    rack (2.0.3)
+    rack (2.0.7)
     rack-protection (2.0.0)
       rack
-    rack-test (0.8.2)
+    rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.1.4)
       actioncable (= 5.1.4)
@@ -190,15 +190,15 @@ GEM
       activesupport (>= 3.2)
       choice (~> 0.2.0)
       ruby-graphviz (~> 1.2)
-    rails-html-sanitizer (1.0.3)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.2.0)
+      loofah (~> 2.2, >= 2.2.2)
     railties (5.1.4)
       actionpack (= 5.1.4)
       activesupport (= 5.1.4)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (12.3.0)
+    rake (12.3.3)
     ransack (1.8.6)
       actionpack (>= 3.0)
       activerecord (>= 3.0)
@@ -208,9 +208,9 @@ GEM
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
-    responders (2.4.0)
-      actionpack (>= 4.2.0, < 5.3)
-      railties (>= 4.2.0, < 5.3)
+    responders (3.0.0)
+      actionpack (>= 5.0)
+      railties (>= 5.0)
     ruby-graphviz (1.2.3)
     ruby_dep (1.5.0)
     rubyzip (1.2.1)
@@ -257,18 +257,18 @@ GEM
       daemons (~> 1.0, >= 1.0.9)
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
-    thor (0.20.0)
+    thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.8)
     turbolinks (5.1.0)
       turbolinks-source (~> 5.1)
     turbolinks-source (5.1.0)
-    tzinfo (1.2.4)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uglifier (4.1.5)
       execjs (>= 0.3.0, < 3)
-    warden (1.2.7)
-      rack (>= 1.0)
+    warden (1.2.8)
+      rack (>= 2.0.6)
     web-console (3.5.1)
       actionview (>= 5.0)
       activemodel (>= 5.0)