diff --git a/test/Gemfile b/test/Gemfile
index da602cd..a5cc6fa 100644
--- a/test/Gemfile
+++ b/test/Gemfile
@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'sinatra', '2.0.5'
+gem 'sinatra', '2.2.3'
 gem 'sinatra-activerecord', '2.0.13'
 gem 'mysql2', '0.4.10'
 gem 'rake', '12.3.0'
diff --git a/test/Gemfile.lock b/test/Gemfile.lock
index ab3c480..bb43231 100644
--- a/test/Gemfile.lock
+++ b/test/Gemfile.lock
@@ -17,22 +17,24 @@ GEM
     i18n (0.9.3)
       concurrent-ruby (~> 1.0)
     minitest (5.11.3)
-    mustermann (1.0.3)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
     mysql2 (0.4.10)
-    rack (2.0.6)
-    rack-protection (2.0.5)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rake (12.3.0)
-    sinatra (2.0.5)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.5)
+    ruby2_keywords (0.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     sinatra-activerecord (2.0.13)
       activerecord (>= 3.2)
       sinatra (>= 1.0)
     thread_safe (0.3.6)
-    tilt (2.0.9)
+    tilt (2.0.11)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
 
@@ -44,5 +46,5 @@ DEPENDENCIES
   minitest (= 5.11.3)
   mysql2 (= 0.4.10)
   rake (= 12.3.0)
-  sinatra (= 2.0.5)
+  sinatra (= 2.2.3)
   sinatra-activerecord (= 2.0.13)