diff --git a/Gemfile.lock b/Gemfile.lock
index c3a112a..2f7ea2b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,8 +26,10 @@ GEM
     mocha (0.9.8)
       rake
     multi_json (1.0.3)
-    rack (1.3.5)
-    rack-protection (1.1.4)
+    mustermann (3.0.0)
+      ruby2_keywords (~> 0.0.1)
+    rack (2.2.4)
+    rack-protection (3.0.4)
       rack
     rake (0.9.2.2)
     redis (2.2.2)
@@ -40,12 +42,14 @@ GEM
       vegas (~> 0.1.2)
     resque_unit (0.4.1)
       json (>= 1.4.6)
+    ruby2_keywords (0.0.5)
     shoulda (2.11.3)
-    sinatra (1.3.1)
-      rack (~> 1.3, >= 1.3.4)
-      rack-protection (~> 1.1, >= 1.1.2)
-      tilt (~> 1.3, >= 1.3.3)
-    tilt (1.3.3)
+    sinatra (3.0.4)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.4)
+      tilt (~> 2.0)
+    tilt (2.0.11)
     tzinfo (0.3.31)
     vegas (0.1.8)
       rack (>= 1.0.0)