diff --git a/Gemfile b/Gemfile
index 63c4e89..adc2aa7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 ruby "2.5.3"
 
-gem 'sinatra', '~> 1'
+gem 'sinatra', '~> 2'
 gem 'redis'
 gem 'rake'
 gem "puma"
diff --git a/Gemfile.lock b/Gemfile.lock
index 7563f28..576e59e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,12 +7,14 @@ GEM
     diff-lcs (1.3)
     docile (1.1.5)
     json (2.1.0)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     puma (3.12.4)
-    rack (1.6.13)
+    rack (2.2.3)
     rack-console (1.3.1)
       rack (>= 1.1)
       rack-test
-    rack-protection (1.5.5)
+    rack-protection (2.2.0)
       rack
     rack-test (0.8.3)
       rack (>= 1.0, < 3)
@@ -31,16 +33,18 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.7.0)
     rspec-support (3.7.1)
+    ruby2_keywords (0.0.5)
     simplecov (0.15.1)
       docile (~> 1.1.0)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    sinatra (1.4.8)
-      rack (~> 1.5)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
-    tilt (2.0.8)
+    sinatra (2.2.0)
+      mustermann (~> 1.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
+      tilt (~> 2.0)
+    tilt (2.0.10)
 
 PLATFORMS
   ruby
@@ -55,7 +59,7 @@ DEPENDENCIES
   redis
   rspec
   simplecov
-  sinatra (~> 1)
+  sinatra (~> 2)
 
 RUBY VERSION
    ruby 2.5.3p105