diff --git a/Gemfile.lock b/Gemfile.lock
index 37517dc..413c59e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -41,13 +41,14 @@ GEM
     minitest (5.8.4)
     mono_logger (1.1.0)
     multi_json (1.10.1)
+    mustermann (1.0.2)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.1)
     netrc (0.11.0)
     public_suffix (2.0.5)
-    rack (1.6.4)
-    rack-protection (1.5.3)
+    rack (2.0.4)
+    rack-protection (2.0.1)
       rack
     rake (10.3.2)
     redis (3.3.3)
@@ -78,16 +79,17 @@ GEM
       rspec-support (~> 3.2.0)
     rspec-support (3.2.2)
     safe_yaml (1.0.4)
-    sinatra (1.4.5)
-      rack (~> 1.4)
-      rack-protection (~> 1.4)
-      tilt (~> 1.3, >= 1.3.4)
+    sinatra (2.0.1)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.1)
+      tilt (~> 2.0)
     sshkit (1.5.1)
       colorize
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     thread_safe (0.3.5)
-    tilt (1.4.1)
+    tilt (2.0.8)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
     unf (0.1.4)
@@ -118,4 +120,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   1.16.0
+   1.16.1