diff --git a/Gemfile.lock b/Gemfile.lock
index c149ea8..ce4e614 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -182,7 +182,7 @@ GEM
       railties (>= 3.1)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    mustermann (1.1.1)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     naught (1.1.0)
     net-http-persistent (4.0.1)
@@ -216,10 +216,10 @@ GEM
     puma (5.6.4)
       nio4r (~> 2.0)
     racc (1.6.0)
-    rack (2.2.3.1)
+    rack (2.2.4)
     rack-cors (1.1.1)
       rack (>= 2.0.0)
-    rack-protection (2.2.0)
+    rack-protection (3.0.4)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -322,10 +322,10 @@ GEM
       sinatra (>= 1.4.7)
     simple_command (0.1.0)
     simple_oauth (0.3.1)
-    sinatra (2.2.0)
-      mustermann (~> 1.0)
-      rack (~> 2.2)
-      rack-protection (= 2.2.0)
+    sinatra (3.0.4)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.4)
       tilt (~> 2.0)
     spring (2.1.1)
     spring-watcher-listen (2.0.1)
@@ -340,7 +340,7 @@ GEM
       sprockets (>= 3.0.0)
     thor (1.1.0)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     twitter (7.0.0)
       addressable (~> 2.3)
       buftok (~> 0.2.0)