diff --git a/Gemfile.lock b/Gemfile.lock
index 10d0ce8..9b9dc44 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,8 +28,8 @@ GEM
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
     arel (5.0.1.20140414130214)
-    bcrypt (3.1.9)
-    builder (3.2.2)
+    bcrypt (3.1.13)
+    builder (3.2.3)
     chunky_png (1.3.3)
     coffee-rails (4.0.1)
       coffee-script (>= 2.2.0)
@@ -44,32 +44,33 @@ GEM
       sass (~> 3.1)
     compass-rails (1.1.3)
       compass (>= 0.12.2)
-    devise (3.4.1)
+    concurrent-ruby (1.1.5)
+    devise (4.7.1)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 3.2.6, < 5)
+      railties (>= 4.1.0)
       responders
-      thread_safe (~> 0.1)
       warden (~> 1.2.3)
     erubis (2.7.0)
     execjs (2.2.2)
     fssm (0.2.10)
     hike (1.2.3)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.2.6)
       activesupport (>= 3.0.0, < 5)
       multi_json (~> 1.2)
     jquery-rails (3.1.2)
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
-    json (1.8.2)
+    json (1.8.6)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.4.3)
-    minitest (5.5.1)
+    minitest (5.13.0)
     multi_json (1.10.1)
     orm_adapter (0.5.0)
-    rack (1.5.2)
+    rack (1.5.5)
     rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.1.7)
@@ -87,10 +88,10 @@ GEM
       activesupport (= 4.1.7)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rake (10.4.2)
+    rake (13.0.0)
     rdoc (4.2.0)
       json (~> 1.4)
-    responders (1.1.1)
+    responders (1.1.2)
       railties (>= 3.2, < 4.2)
     sass (3.2.19)
     sass-rails (4.0.5)
@@ -115,17 +116,17 @@ GEM
     susy (1.0.9)
       compass (>= 0.12.2)
       sass (>= 3.2.0)
-    thor (0.19.1)
-    thread_safe (0.3.4)
+    thor (0.20.3)
+    thread_safe (0.3.6)
     tilt (1.4.1)
     turbolinks (2.5.3)
       coffee-rails
-    tzinfo (1.2.2)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
     uglifier (2.7.0)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
-    warden (1.2.3)
+    warden (1.2.7)
       rack (>= 1.0)
 
 PLATFORMS