diff --git a/Gemfile.lock b/Gemfile.lock
index 9bdc705..bc394bc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,12 +50,13 @@ GEM
     mini_portile2 (2.3.0)
     multi_json (1.13.1)
     multi_test (0.1.2)
-    mustermann (1.0.3)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     public_suffix (3.0.3)
-    rack (2.0.5)
-    rack-protection (2.0.3)
+    rack (2.2.3)
+    rack-protection (2.2.0)
       rack
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -82,16 +83,17 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.3.0)
     rspec-support (3.3.0)
+    ruby2_keywords (0.0.5)
     safe_yaml (1.0.4)
     simplecov (0.16.1)
       docile (~> 1.1)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
-    sinatra (2.0.3)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.3)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     sinatra-flash (0.3.0)
       sinatra (>= 1.0.0)
@@ -99,7 +101,7 @@ GEM
       diff-lcs (>= 1.1.2)
       extlib (>= 0.9.5)
       highline (>= 1.4.0)
-    tilt (2.0.8)
+    tilt (2.0.10)
     timers (4.0.4)
       hitimes
     webmock (3.3.0)