diff --git a/Gemfile.lock b/Gemfile.lock
index 7e74a65..d003e62 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,14 +98,15 @@ GEM
     minitest (5.11.3)
     msgpack (1.2.9)
     multipart-post (2.0.0)
-    mustermann (1.0.3)
+    mustermann (1.1.1)
+      ruby2_keywords (~> 0.0.1)
     nio4r (2.3.1)
     nokogiri (1.10.2)
       mini_portile2 (~> 2.4.0)
     puma (3.12.1)
-    rack (2.0.7)
+    rack (2.2.3)
     rack-cors (1.0.3)
-    rack-protection (2.0.5)
+    rack-protection (2.2.0)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -137,11 +138,12 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
-    sinatra (2.0.5)
+    sinatra (2.2.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.5)
+      rack (~> 2.2)
+      rack-protection (= 2.2.0)
       tilt (~> 2.0)
     spring (2.0.2)
       activesupport (>= 4.2)
@@ -158,7 +160,7 @@ GEM
     sqlite3 (1.4.0)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tilt (2.0.9)
+    tilt (2.0.10)
     twilio-ruby (5.22.0)
       faraday (~> 0.9)
       jwt (>= 1.5, <= 2.5)