diff --git a/api_sim.gemspec b/api_sim.gemspec
index 50cec46..f981ad6 100644
--- a/api_sim.gemspec
+++ b/api_sim.gemspec
@@ -19,7 +19,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "sinatra", '~> 1.4'
+  spec.add_dependency "sinatra", '~> 2.0'
   spec.add_dependency "nokogiri", '~> 1.6'
   spec.add_dependency "json-schema", '>= 2.5'
   spec.add_dependency "mustermann", '~> 1.0.0.beta2'
diff --git a/examples/basic/Gemfile.lock b/examples/basic/Gemfile.lock
index 30f2396..89fd0a4 100644
--- a/examples/basic/Gemfile.lock
+++ b/examples/basic/Gemfile.lock
@@ -5,7 +5,7 @@ PATH
       json-schema (>= 2.5)
       mustermann (~> 1.0.0.beta2)
       nokogiri (~> 1.6)
-      sinatra (~> 1.4)
+      sinatra (~> 2.0)
 
 GEM
   remote: https://rubygems.org/
@@ -16,16 +16,17 @@ GEM
       addressable (>= 2.4)
     mini_portile2 (2.4.0)
     mustermann (1.0.3)
-    nokogiri (1.10.7)
+    nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
-    public_suffix (4.0.1)
-    rack (1.6.11)
-    rack-protection (1.5.5)
+    public_suffix (4.0.5)
+    rack (2.2.2)
+    rack-protection (2.0.8.1)
       rack
-    sinatra (1.4.8)
-      rack (~> 1.5)
-      rack-protection (~> 1.4)
-      tilt (>= 1.3, < 3)
+    sinatra (2.0.8.1)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.8.1)
+      tilt (~> 2.0)
     tilt (2.0.10)
 
 PLATFORMS
diff --git a/lib/api_sim/version.rb b/lib/api_sim/version.rb
index 746bbb0..9d9e0bf 100644
--- a/lib/api_sim/version.rb
+++ b/lib/api_sim/version.rb
@@ -1,3 +1,3 @@
 module ApiSim
-  VERSION = "7.0.0"
+  VERSION = "8.0.0"
 end