diff --git a/Gemfile.lock b/Gemfile.lock
index 407cc6d96..ecbf08a1d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,8 +29,10 @@ GEM
     json (1.8.0)
     multi_json (1.8.0)
     mustache (0.99.4)
-    rack (1.5.2)
-    rack-protection (1.5.0)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
+    rack (2.2.3)
+    rack-protection (2.2.0)
       rack
     rake (10.1.0)
     rdiscount (2.1.6)
@@ -40,12 +42,14 @@ GEM
       rdiscount (>= 1.5.8)
     rspec-expectations (2.14.3)
       diff-lcs (>= 1.1.3, < 2.0)
+    ruby2_keywords (0.0.5)
     safe_yaml (0.9.7)
-    sinatra (1.4.3)
-      rack (~> 1.4)
-      rack-protection (~> 1.4)
-      tilt (~> 1.3, >= 1.3.4)
-    tilt (1.4.1)
+    sinatra (2.2.0)
+      mustermann (~> 1.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
+      tilt (~> 2.0)
+    tilt (2.0.10)
     webmock (1.14.0)
       addressable (>= 2.2.7)
       crack (>= 0.3.2)