diff --git a/Gemfile.lock b/Gemfile.lock
index 5f0b41b..3ef2ae0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -22,6 +22,8 @@ GEM
     json (1.8.6)
     method_source (0.8.2)
     multipart-post (2.0.0)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     octokit (4.6.2)
       sawyer (~> 0.8.0, >= 0.5.3)
     pry (0.10.1)
@@ -29,8 +31,8 @@ GEM
       method_source (~> 0.8.1)
       slop (~> 3.4)
     public_suffix (2.0.4)
-    rack (1.6.5)
-    rack-protection (1.5.3)
+    rack (2.2.2)
+    rack-protection (2.0.8.1)
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -48,6 +50,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-support (3.9.2)
+    ruby2_keywords (0.0.2)
     sawyer (0.8.1)
       addressable (>= 2.3.5, < 2.6)
       faraday (~> 0.8, < 1.0)
@@ -56,12 +59,13 @@ GEM
       json (~> 1.8)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.0)
-    sinatra (1.4.7)
-      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)
     slop (3.6.0)
-    tilt (2.0.5)
+    tilt (2.0.10)
     ultrahook (0.1.4)
       json (>= 1.8.0)