diff --git a/Gemfile.lock b/Gemfile.lock
index 84f2ff5..1bd54e6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,6 +67,8 @@ GEM
     mime-types (1.18)
     minitar (0.5.3)
     multi_json (1.3.5)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
     net-http-digest_auth (1.2.1)
     net-http-persistent (2.6)
     net-sftp (2.0.4)
@@ -74,8 +76,8 @@ GEM
     net-ssh (2.0.23)
     nokogiri (1.5.2)
     ntlm-http (0.1.1)
-    rack (1.4.1)
-    rack-protection (1.2.0)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rack-test (0.6.1)
       rack (>= 1.0)
@@ -90,6 +92,7 @@ GEM
       diff-lcs (~> 1.1.2)
     rspec-mocks (2.1.0)
     ruby-mysql (2.9.8)
+    ruby2_keywords (0.0.5)
     rubyforge (2.0.3)
       json_pure (>= 1.1.7)
     rubyzip (0.9.4)
@@ -99,12 +102,13 @@ GEM
       libwebsocket (~> 0.1.3)
       multi_json (~> 1.0)
       rubyzip
-    sinatra (1.3.2)
-      rack (~> 1.3, >= 1.3.6)
-      rack-protection (~> 1.2)
-      tilt (~> 1.3, >= 1.3.3)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
+      tilt (~> 2.0)
     term-ansicolor (1.0.7)
-    tilt (1.3.3)
+    tilt (2.0.11)
     unf (0.0.5)
       unf_ext
     unf_ext (0.0.5)