diff --git a/Gemfile.lock b/Gemfile.lock
index d60966c..a3bb1b4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,8 +4,9 @@ GEM
     bencode (0.8.1)
     diff-lcs (1.2.5)
     kgio (2.9.2)
-    rack (1.5.2)
-    rack-protection (1.5.3)
+    mustermann (1.0.2)
+    rack (2.0.4)
+    rack-protection (2.0.1)
       rack
     rack-test (0.6.2)
       rack (>= 1.0)
@@ -19,11 +20,12 @@ GEM
     rspec-expectations (2.14.5)
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-mocks (2.14.6)
-    sinatra (1.4.5)
-      rack (~> 1.4)
-      rack-protection (~> 1.4)
-      tilt (~> 1.3, >= 1.3.4)
-    tilt (1.4.1)
+    sinatra (2.0.1)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.1)
+      tilt (~> 2.0)
+    tilt (2.0.8)
     unicorn (4.8.3)
       kgio (~> 2.6)
       rack
@@ -39,3 +41,6 @@ DEPENDENCIES
   rspec
   sinatra
   unicorn
+
+BUNDLED WITH
+   1.16.1