diff --git a/Gemfile.lock b/Gemfile.lock
index cd41eb7..76c8445 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GEM
     multi_json (1.14.1)
     multi_xml (0.6.0)
     multipart-post (2.1.1)
-    mustermann (1.1.1)
+    mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.2)
     oauth2 (1.4.3)
@@ -35,25 +35,25 @@ GEM
     pg (1.2.2)
     puma (4.3.5)
       nio4r (~> 2.0)
-    rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rack-ssl (1.4.1)
       rack
-    ruby2_keywords (0.0.2)
+    ruby2_keywords (0.0.5)
     sassc (2.2.1)
       ffi (~> 1.9)
     sequel (5.29.0)
-    sinatra (2.0.8.1)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     sinatra-sequel (0.9.0)
       sequel (>= 3.2.0)
       sinatra (>= 0.9.4)
     temple (0.8.2)
-    tilt (2.0.10)
+    tilt (2.0.11)
 
 PLATFORMS
   ruby