diff --git a/Gemfile.lock b/Gemfile.lock
index 9dcdb39..71cdde8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -51,7 +51,7 @@ GEM
     autoprefixer-rails (6.1.0.1)
       execjs
       json
-    bcrypt (3.1.10)
+    bcrypt (3.1.18)
     better_errors (2.1.1)
       coderay (>= 1.0.0)
       erubis (>= 2.6.6)
@@ -64,7 +64,7 @@ GEM
     bourbon (4.2.7)
       sass (~> 3.4)
       thor (~> 0.19)
-    builder (3.2.2)
+    builder (3.2.4)
     capybara (2.4.1)
       mime-types (>= 1.16)
       nokogiri (>= 1.3.3)
@@ -91,12 +91,11 @@ GEM
       thor
     database_cleaner (1.5.0)
     debug_inspector (0.0.2)
-    devise (3.4.1)
+    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)
     diff-lcs (1.2.5)
     docile (1.1.5)
@@ -145,7 +144,8 @@ GEM
       actionpack (>= 3.2, < 5)
       activesupport (>= 3.2, < 5)
     hashie (3.4.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     inherited_resources (1.6.0)
       actionpack (>= 3.2, < 5)
       has_scope (~> 0.6.0.rc)
@@ -156,7 +156,7 @@ GEM
       thor (>= 0.14, < 2.0)
     jquery-ui-rails (5.0.5)
       railties (>= 3.2.16)
-    json (1.8.3)
+    json (1.8.6)
     jwt (1.2.1)
     kaminari (0.17.0)
       actionpack (>= 3.0.0)
@@ -176,7 +176,7 @@ GEM
     method_source (0.8.2)
     mime-types (1.25.1)
     mini_portile2 (2.0.0)
-    minitest (5.9.1)
+    minitest (5.17.0)
     multi_json (1.12.1)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
@@ -305,19 +305,19 @@ GEM
       sprockets (>= 2.8, < 4.0)
     term-ansicolor (1.3.0)
       tins (~> 1.0)
-    thor (0.19.1)
-    thread_safe (0.3.5)
+    thor (0.20.3)
+    thread_safe (0.3.6)
     tilt (2.0.5)
     tins (1.3.2)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (1.2.2)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (2.7.1)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
-    warden (1.2.3)
+    warden (1.2.7)
       rack (>= 1.0)
     xpath (2.0.0)
       nokogiri (~> 1.3)