diff --git a/Gemfile b/Gemfile
index de564e1..779a8a0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,10 +15,10 @@ gem 'rake', '~> 12.3'
 gem 'redis', '~> 4.0', '>= 4.0.1'
 gem 'require_all', '~> 1.5'
 gem 'sass', '~> 3.5', '>= 3.5.5'
-gem 'sinatra', '~> 2.0.8'
+gem 'sinatra', '~> 2.2.0'
 gem 'sinatra-activerecord', '~> 2.0', '>= 2.0.13'
 gem 'sinatra-asset-pipeline', '~> 2.0', require: 'sinatra/asset_pipeline'
-gem 'sinatra-contrib', '~> 2.0.8', require: false
+gem 'sinatra-contrib', '~> 2.2.0', require: false
 gem 'uglifier', '~> 4.1', '>= 4.1.6'
 gem 'pry'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 19d1c54..0c59170 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,6 @@ GEM
       public_suffix (>= 2.0.2, < 4.0)
     aes_key_wrap (1.0.1)
     arel (8.0.0)
-    backports (3.16.1)
     bindata (2.4.5)
     builder (3.2.3)
     byebug (9.1.0)
@@ -80,7 +79,7 @@ GEM
     mime-types-data (3.2016.0521)
     mini_portile2 (2.4.0)
     minitest (5.14.0)
-    multi_json (1.14.1)
+    multi_json (1.15.0)
     multipart-post (2.0.0)
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
@@ -96,10 +95,10 @@ GEM
       pry (~> 0.10)
     public_suffix (3.0.1)
     puma (3.12.4)
-    rack (2.2.2)
+    rack (2.2.3)
     rack-contrib (2.0.1)
       rack (~> 2.0)
-    rack-protection (2.0.8.1)
+    rack-protection (2.2.0)
       rack
     rack-test (0.8.2)
       rack (>= 1.0, < 3)
@@ -129,7 +128,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.7.0)
     rspec-support (3.7.1)
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     sass (3.5.5)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
@@ -146,10 +145,10 @@ GEM
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    sinatra (2.0.8.1)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     sinatra-activerecord (2.0.13)
       activerecord (>= 3.2)
@@ -161,12 +160,11 @@ GEM
       sinatra (~> 2.0)
       sprockets (~> 3.7)
       sprockets-helpers (~> 1.2)
-    sinatra-contrib (2.0.8.1)
-      backports (>= 2.8.2)
+    sinatra-contrib (2.2.0)
       multi_json
       mustermann (~> 1.0)
-      rack-protection (= 2.0.8.1)
-      sinatra (= 2.0.8.1)
+      rack-protection (= 2.2.0)
+      sinatra (= 2.2.0)
       tilt (~> 2.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
@@ -206,10 +204,10 @@ DEPENDENCIES
   rspec (~> 3.7)
   sass (~> 3.5, >= 3.5.5)
   simplecov (~> 0.15.1)
-  sinatra (~> 2.0.8)
+  sinatra (~> 2.2.0)
   sinatra-activerecord (~> 2.0, >= 2.0.13)
   sinatra-asset-pipeline (~> 2.0)
-  sinatra-contrib (~> 2.0.8)
+  sinatra-contrib (~> 2.2.0)
   uglifier (~> 4.1, >= 4.1.6)
 
 RUBY VERSION