diff --git a/Gemfile.lock b/Gemfile.lock
index e6c6ffcb..0c022190 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -36,7 +36,8 @@ GEM
     lumberjack (1.0.13)
     method_source (0.9.2)
     multipart-post (2.0.0)
-    mustermann (1.0.3)
+    mustermann (2.0.2)
+      ruby2_keywords (~> 0.0.1)
     nenv (0.3.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
@@ -51,8 +52,8 @@ GEM
       byebug (~> 10.0)
       pry (~> 0.10)
     public_suffix (3.0.3)
-    rack (2.2.3)
-    rack-protection (2.0.5)
+    rack (2.2.4)
+    rack-protection (2.2.3)
       rack
     rake (12.3.3)
     rb-fsevent (0.10.3)
@@ -71,15 +72,16 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
+    ruby2_keywords (0.0.5)
     ruby_dep (1.5.0)
     sawyer (0.8.1)
       addressable (>= 2.3.5, < 2.6)
       faraday (~> 0.8, < 1.0)
     shellany (0.0.1)
-    sinatra (2.0.5)
-      mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.5)
+    sinatra (2.2.3)
+      mustermann (~> 2.0)
+      rack (~> 2.2)
+      rack-protection (= 2.2.3)
       tilt (~> 2.0)
     slack-poster (2.2.1)
       faraday (~> 0.9)
@@ -88,7 +90,7 @@ GEM
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
     thor (0.20.3)
-    tilt (2.0.9)
+    tilt (2.0.11)
     timecop (0.9.1)
     trollop (2.9.9)